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

9.Na3 Nf4 10.Nc2 Bg4 11.Nb4 Nb4 12.d4 Qd5 (12...Bf5 13.Kd2 Nfd3 14.Bd3 Nd3 15.Qc2–+) 13.a3 (13.Kd2 Nh3 14.Ke1 Ng5–/+ (worse 14...Na2 15.Be2+=)) 13...Nbd3! 14.Bd3 Theme: Deflection from g2 (14.Qd3 Nd3 Theme: Double Attack) 14...Ng2 15.Kd2 Bf3 (15...Qf3?! 16.Qf3 Bf3 17.Rhc1=+) 16.Qb1 Qh5 (16...Be4 17.Rg1 Nh4 18.Be4 Re4 19.Rc1–+) 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 (10.Bc6 bc6 11.0-0 Rb8=+) 10...a6 (10...Bd7 11.Qb3 Bg4 12.Be2=+) 11.Bc6= bc6 12.d4 (12.d3 Nb4 13.Kh1 Be7=) 12...Qf6 (12...Bf5 13.Nc3=+) 13.Qc1 Nb4 14.Nbd2 Nd3 15.Qc2 Nb2 16.Qb2 c5 17.Nc4 (17.Qb1 Qe6=+) 17...Be7 (17...Bg4 18.dc5 Qb2 19.Nb2 Bc5 20.Rfd1=+) 18.Rac1 (18.dc5 Qb2 19.Nb2 Bc5=+) 18...cd4 19.ed4 (19.Qd4 Be6=+) 19...Be6 20.Qc2 (20.Qb7 c5 21.dc5 Bc5=+) 20...Bd5–/+ 21.Nce5 Bd6 (21...Rac8 22.Rfe1=+) 22.Rfe1 Qh6 (22...Rad8 23.Qa4=+) 23.Qa4 Reb8 24.Qd7 (24.Qa5 Rb5 25.Qc3 Ba2–/+) 24...Rd8 (24...f6 25.Nc4 Rd8 26.Qg4–/+) 25.Qf5 Ba2 26.Qe4 (26.Nc6 Re8 27.Qa5 Bf4 28.Re8 Re8–/+) 26...Bb4 27.Re3 Bd5 28.Qf5 Bd6 29.g3 (29.Rce1 c6–/+) 29...g6 30.Qf6 Qg7 (30...Re8 31.Rce1 Qg7 32.Qh4–/+) 31.Qh4 f6 (31...Re8 32.Rce1–/+) 32.Nc4 (32.Ng4 Kf7–/+) 32...Bf8 (32...Bb4 33.Nfd2–+) 33.Ncd2 (33.Na5 g5 34.Qh5 g4–+) 33...g5–+ 34.Qh5 (34.Qg4 Qd7 35.Ne4 Qg4 36.Nf6 Kh8 37.Ng4 Bf3 38.Rf3 Rd4–/+) 34...g4 35.Nh4 c5 36.f3 (36.Ne4 cd4 37.Nf5 Qg6 (37...de3?! 38.Ng7 Be4 39.Qg4=) 38.Qg6 hg6 39.Nf6 Kf7 40.Nd5 Rd5 (40...gf5 41.Rc7 Kg6 42.Re6 Kg5 43.f4 gf3 44.h4 Kg4 45.Rg6 Kh3 46.Nf4) 41.Rc7 Kf6–+) 36...cd4 37.Rd3 Be6 38.Qa5 (38.fg4 Qg4 39.Qg4 Bg4–+) 38…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 (10...Qf6 11.Qb3 Qa1 12.Bd3 Ne3 13.Bb2 Be6=) 11.Qb3 Qe7 (11...Nd4 12.Nd4 Qd4 13.Nc3 Bg4=+) 12.Ba3? (12.Be2 Bf5 13.a3–+ (13.Kf2 Ng4–+) 13...Re8–+) 12...Ng2?? (better 12...Nc2! 13.Kd1 Na1 (13...Na3?! 14.Na3 Ba3 15.Bc4–/+) 14.Bb4 Nb4–+) 13.Kf2 (better 13.Kd1 Ba3 14.Na3+- (14.Bg2?! Qf6 15.Na3 Qa1 16.Ke2 Nd4 17.Nd4 Qd4=+)) 13...Bh3?? (better 13...Nh4 14.Qe3 Nf3 15.Qe7 Be7 16.Be7 Nfd4=) 14.Bb4 (14.Bg2 Nd4 15.Nd4 Qh4 16.Kf1 Bg2 17.Kg2 Ba3+-) 14...Nb4 15.Nc3 (15.Bg2!? Be6 16.Qc3 Bf5+-) 15...Rd8?? (better 15...Be6 16.Qb1 Nf4+-) 16.Rd1 (16.Bg2 Nd3 17.Kf1+=) 16...Rd3?? (better 16...Rd2! 17.Rd2 Qe3 18.Kg3 Qf4 19.Kf2 Qe3 20.Kg3 Qf4 21.Kf2 Qe3=) 17.Qc4 (better 17.Bg2 Qc5 18.Kg3+-) 17...Qd6?? (17...Rf3 18.Kf3 Qf6 19.Kg3 Qg5 20.Kf2 (20.Kh3?! Nf4 21.Qf4 Qf4=) 20...Qf6 21.Kg1 Qb6 22.d4+-) 18.Qe4 (better 18.Bg2 Qb6 19.Kg3+-) 18...Qc5+- 19.Kg3 (better 19.Ke2 Rd8 20.Bg2 (20.Qb7?? Nf4 21.Ke1 Nc2) 20...Bg2 21.Rhg1 Bf3 22.Qf3 Qe5 23.Kf1+-) 19...Qg5= 20.Kf2 Qc5 21.Kg3 (better 21.Ke2 Rd8 22.Bg2 (22.Qb7?? Nf4 23.Ke1 Nc2) 22...Bg2 23.Rhg1 Bf3 24.Qf3 Qe5 25.Kf1+-) 21...Qg5= 22.Kf2 Qc5 ½–½. Nicklich,Wolfgang – Kabisch,Guenter, corr DDR–ch M633, 1979.

9.Bc1 Qf6 10.Nc3 Nc3–+ 11.Bb2 Nd4 12.Bc3 Bc3 13.Rc1 Bg4–+.

9.Qc2 Ne3 10.fe3+= Re3 11.Kf2 Re8 12.Bd3 g6 (12...Bc5 13.Qc5 Qd3 14.Qg5+/-) 13.Re1 Bg4 (better 13...Re1 14.Ke1 Bg4+=) 14.Nc3?? (better 14.Re8 Qe8 15.Be4+-) 14...Bf3 (better 14...Re1 15.Ke1 Bf3 16.gf3 Qh4 17.Kd1 Nd4=+) 15.gf3?? (better 15.Re8 Qe8 16.gf3+=) 15...Qh4-+ 16.Kg2 Nd4 (better 16...Re1!? 17.Re1 Qe1 18.Ne4-+) 17.Qa4?? (better 17.Re8 Re8 18.Qa4+-) 17...Re1-+ 18.Re1 (18.Ne4 Ra1 19.Ba1 Nc6-/+) 18...Qe1 19.Qb4 (19.Ne4 Nc6 20.Ba6-+) 19...Qd2 20.Be2 (20.Kg3 Qd3 21.Qb7-+) 20...Ne2 21.Ne2 (21.Qb7 Nc3 22.Kh3 Qd7 23.Kg2-+) 21…Qb4 (21...Qb4 22.Bc3 Qc4-+) 0-1. pacal56 (2145) - DukicaVodovod (2220), Rated Blitz game, lichess.org, 2015.

9.Nc3 Bc3 10.Bc3 Nc3 11.dc3 Qd1 12.Rd1 Bg4 13.Bb5 a6 14.Bc6 bc6 15.0-0 Bf3 16.gf3 Rab8 17.Rd7 Rb2 18.Rc7 Ra2 19.Rc6 a5 20.Rb1 g6 21.Ra6 Rd8 22.Rb5 Rdd2 23.Raa5 Rac2 24.Rg5 Rf2 25.Rac5 Rf3 26.Rc8 Kg7 27.Rg2 Rc1 0-1. RichardSommer (2055) - alexbabal (2080), lichess.org, 2020.

9.Nc3 Nc3 10.dc3=+ Bc5 (10...Bd6=+) 11.Nd4? (better 11.Qd8!? Rd8 12.Nd4=) 11...Nd4–/+ 12.cd4 Bb4 13.Ke2 Qe7 14.Qd3 c5 15.h3 Be6 16.Qc2 (16.dc5!? Rad8 17.Bd4–/+) 16...Rac8–+ 17.dc5 Rc5 (17...Rc5 18.Qa4 b5 19.Qb4 Rc2 20.Qd2 Rd2 21.Kd2 Rc8–+) 0–1. Berreteaga,R – Barros Pazos,Manuel, corr Spain, 1989.

9.Nc3 Nf6 10.Be2 Bg4 11.0-0 a6 12.h3 Bd7 13.d4 Bd6 14.Qc2 Qc8 15.Rfc1 Nb4 16.Qd1 Bf5 17.Ba3 Nc2 18.Bd6 Na1 19.Ra1 cd6 20.Bd3 Bd3 21.Qd3 d5 22.Rc1 Qe6 23.Ne5 Rac8 24.Rb1 b5 25.Ne2 Ne4 26.Nf4 f6 27.Ne6 fe5 28.Nc5 ed4 29.ed4 Rf8 30.Na6 Nf2 31.Qb5 1-0. Knight545 (1770) - alessandrocarvalhaes (1820), lichess.org, 2020.

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 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.

9.Bc4 Bf5 10.0-0 Nb6 11.Bb5 Re6 (better 11...Bd3!? 12.Bc6 bc6=+) 12.Bc6+= Rc6 13.Nd4 Rc5? (better 13...Qg5 14.Nc6 Be4+/-) 14.Nf5+- Rf5 15.Qg4 Rg5 (15...Qg5 16.Qb4 Rb5 17.Qd4+-) 16.Qb4 Qd5 17.e4 (17.f3 Qd3+-) 17...Qd3 (17...c5 18.ed5 cb4 19.Bd4+-) 18.f4 Rg6 19.Rf2 a5 20.Qd4 Qc2 (20...Rd8 21.Qd3 Rd3 22.Be5+-) 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 Annihilates a defender: d3 11.Nc3 Bg4 12.Rf1? (12.a3 Be7 13.Qb1 Qd7-+) 12...Nd4 (better 12...Rad8 13.a3 Re3 14.Kf2 Bc5 15.de3 Qe3 16.Kg3 Rd1 17.Rad1 Be6-+) 13.h3?? (13.Kf2 Nf3 14.gf3-+) 13...Nc2 (better 13...Re3 14.Kf2 Bf3 (14...Bc3?! 15.de3 Qd1 16.Rad1 Bf3 17.gf3 Bb2 18.ed4=+) 15.de3 Bd1 16.Rad1 A) 16...Bc3?! 17.Rd3 Bb2 18.ed4= (18.Rd4? Bd4 19.ed4 c6-+); B) 16...Qc2 17.Kg1 Qb2 18.Rd4 Qc3-+) 14.Kf2 Bf3 15.Qf3 (15.gf3 Rad8 16.Qe2 Qd6-+) 15...Qd2 16.Kg1 Qe3 (16...Bc3 17.Qf7 Kh8 18.Rf2 Qe3 19.Bc3 Qc3 20.Rc1-+) 17.Qe3 Re3 (17...Ne3 18.Rf2-+) 18.Nd5 (18.Rac1 Nd4 (18...Rc3?! 19.Bc3 Bc3 20.Rc2 Bd4 21.Kh1-+) 19.Nd5 Ne2 20.Kf2 Nc1 21.Ke3 Bc5 22.Kf3 Na2 23.Nc7 Rd8-+) 18...Re2 19.Rac1 Bc5 20.Kh1 Bd6 21.Nc3 Rd2?? (better 21...Nd4 22.Ne2 Ne2-+) 22.Ne4=+ Rg2 (22...Ne3 23.Nd2 Nf1 24.Rf1=) 23.Nd6 cd6 24.Kg2 Ne3 25.Kf2 Nf1 26.Rf1 (26.Kf1!? h5 27.Rc7=) 26...Rc8-/+ 27.Rc1 (27.Ke3 f6-/+) 27...Rc1 28.Bc1 Kf8 ½-½. Brown,Alan - Wall,Bill, Dayton, OH, 1981.

9.cd5 Nd5 10.a3 Bd6 11.0-0 Nf6 (11...Ne5 12.Nc3 Nc3 13.Bc3 Nf3 14.Bf3=) 12.Nd4 (12.Nc3 h5=) 12...Nd4 (12...Be2 13.Ne2 Ng4 14.f4=+) 13.Bg4= Nc6 (13...Ng4!? 14.Qg4 Ne6=) 14.Bf3+= Ne5 15.Be5 (worse 15.Bb7 Rb8 16.Be5 Be5=+ (worse 16...Rb7 17.Bf6 Qf6 18.Nc3+=; worse 16...Re5 17.Bf3+=)) 15...Be5 (15...Re5 16.Bb7 Rb8 17.Bf3+=) 16.d4+- Bd6 17.Bb7 Rb8 18.Bf3 Ne4 (18...c5 19.dc5 Bc5 20.Nd2+-) 19.Qc2 Qh4 (19...Qe7 20.Nd2 Nd2 21.Qd2+=) 20.g3 (20.g3 Qe7 21.Rc1+-) 1–0. Janek – Frederico, internet, 2018.

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 (10...Be6 11.Qc2=+) 11.d4 (11.a3 Bd6=) 11...Ng6 (11...Nd5 12.a3 Bd6 13.Nc3=) 12.d5 Nce5 13.Qd4 (better 13.Ne5!? Be2 14.Qe2 Ne5 15.Rd1=) 13...Bf3=+ 14.Bf3 Nf3 15.gf3 Threatening mate... how? 15...Bf8 16.Nd2 Qh4 (16...Qg5 17.Kh1-/+) 17.Rac1 (17.Qh4 Nh4 18.Bc3 Rad8-/+) 17...Qd4 (17...Qh6 18.Qg4=+) 18.Bd4= (18.ed4? Re2 19.Rfd1 Bd6-+) 18...Rec8 (18...Bb4 19.Rfd1 Bd2 20.Rd2+=) 19.Kh1 (19.Rfd1 c5 20.Bb2 b5+=) 19...Bd6 (19...c6 20.Rb1=) 20.f4 (20.Nc4 b5 21.Nd6 cd6=) 20...f6 (20...Ne7 21.Rg1 g6 22.Rb1=) 21.Ne4 (21.Nc4 a6=) 21...Kf7 (21...Ba3 22.Rc4=) 22.Rc2 Ne7 23.Rb1 b6 24.Rb5 a6 (better 24...f5!? 25.Nd6 cd6 26.Rc8 Rc8=) 25.Rb6+/- (25.Nd6?! cd6 26.Rc8 Nc8+=) 25...Bf4 (25...Nd5? 26.Rd6! Rd8 27.Rd8 Rd8 28.Rc6+-) 26.Rb7 (26.ef4 cb6 Discovered attack) 26...Bh6? (better 26...f5 27.Nc3 Bd6+=) 27.Rcc7 Rc7 28.Rc7 Kf8?? (28...Ke8 29.d6 Nd5 30.d7 Kd8+-) 29.Bc5 (29.Bc5 Re8 30.d6+-) 1-0. Borrmann,Fritz - Zuechner,Bernhard, CiF, 1991.

9.Be2 Nf4?? 10.ef4+- Qe7 (10...Qd6 11.0-0 Qf4 12.Nc3+-) 11.Nc3 Bg4 12.Ne5?? (better 12.Nd5 Qd7 13.Ne3+-) 12...Ne5+/- 13.Bg4?? (better 13.fe5 Qe5 14.f3+/-) 13...Ng4-+ 14.Kf1 Qh4 (better 14...Qd6 15.Nd5 Nf2 16.Kf2 Qd5-+) 15.Qf3?? (15.g3 Qh3 (15...Nh2? 16.Kg2 Qf6 17.Rh2+-) 16.Kg1 Rad8-+) 15...Rad8 (better 15...Nh2!? 16.Rh2 Qh2 17.Ne2-+) 16.h3 Nf2 (16...Qf2 17.Qf2 Nf2 18.Kf2 Rd2 19.Kg3 Rb2 20.Nd5-+) 17.Qf2 (17.g3 Qf6 18.Qf2 Qc6-+) 17...Qf2 18.Kf2 Rd2 19.Kf3 Rb2 20.Nd5 Bd6 21.Rhe1 (21.Nc3 f5 22.Rac1 h6-+) 21...Kf8 22.Re8 Ke8 23.Re1 (23.Ne3 Bc5 24.g3 b5-+) 23...Kd7 24.Nc3 b5 25.g3 (25.Re2 Re2 26.Ne2 c5-+) 25...b4 26.Nd5 (26.Ne4 Ra2 27.Ng5 Ra3 28.Kg2 f6 29.Nh7 b3-+) 26…Ra2 0-1. Butterbrot (2110) - cub17 (2280), Rated Blitz game, lichess.org, 2016.

9.Be2 Bg4 10.a3 Ba5 11.0-0 Nce7 (11...Qd6 12.Nc3=) 12.h3 Bh5 13.Qc2 Bb6 14.Nc3 c6 15.Rfe1 Rc8 16.Qb3 Qd7? (better 16...Ba5+=) 17.Ne5+- Qf5 18.Nd5 Nd5? (18...cd5 19.g4 Qg5+-) 19.g4+- Qe4 (19...Qg5 20.Nf3 Qh6 21.gh5 Qh5+-) 20.Bf3 (20.Bf3 Re5 21.Be4 Re4 22.gh5+-; 20.gh5?! Re5 21.Be5 Qe5+/-) 1-0. Knight286 (2135) - OTEZ (2120), Rated Blitz game, lichess.org, 2016.

9.Be2 g5 10.a3 Be7 11.0-0 (11.Bb5 Bd7 12.0-0 a6 13.Bc6 Bc6 14.Nd4= 0.16) 11...Bf5 (11...Qd6 12.Nc3 Nc3 13.dc3 Qh6 14.Qa4= 0.03; 11...a6 12.Nc3 Be6 13.d4 Nc3 14.Bc3= 0.19; 11...g4 12.Ne5 Ne5 13.Be5 Qd7 14.d4+= 0.56; 11...Bf6 12.d4 Bf5 13.Nc3 a6 14.Qb3+= 0.28; 11...Bd6 12.Bb5 Bd7 13.Qb3 Nb6 14.Qc3+= 0.28; 11...Be6 12.Bb5 Qd6 13.Nd4 Bd7 14.Bc6+= 0.31; 11...Rb8 12.Nc3 Be6 13.Bb5 Bf6 14.d4+= 0.28; 11...Nb6 12.Qc2 Bf6 13.d4 g4 14.Ne1+= 0.44) 12.d4 (12.Bb5 Bf6 13.Bc6 bc6 14.Bf6= 0.06) 12...Bd6 (12...Qd6 13.Nbd2 Qe6 14.Ne5+= 0.28) 13.Qb3 (13.Bc4 Nb6 14.Nfd2= -0.09) 13...Na5 14.Qd1 (14.Qa4= 0.16) 14...b5 (14...c6!?=) 15.Nc3 (15.Bb5 Re6 16.Bd3 Bd3 17.Qd3 Rb8+/-) 15...Nc3 16.Bc3 Nc4 17.Qb3 g4 18.Ne1 (better 18.Qb5 gf3 19.Bf3+= (19.Bc4? Bh2 20.Kh1 Re5-+)) 18...Bh2?? (better 18...Qg5 19.Bc4 bc4 20.Qc4 Qh5=) 19.Kh2+- Qh4 (19...Re6 20.Rh1 (20.Qb5 Qh4 21.Kg1 Rh6 22.Qb8 Rb8 23.f4 g3 24.Bc4 Qh2) 20...g3 21.fg3+-) 20.Kg1 Re6 21.Bg4?? (21.Bc4 Rh6 22.Bf7 Kg7 23.d5 Kf7 24.f3 g3 25.d6 Kg6 26.Qg8 Rg8 27.dc7 Qh2) 21...Bg4=+ 22.Nc2?? (22.f3 Ne3 23.fg4 Nf1 24.Nf3 Qg4 25.Rf1+=) 22…Bf3-+ (22...Bf3 23.a4 Rh6 24.Qc4 Qh2) 0-1. Trokenheim,Marek - Rydh,Andreas, corr SSKK 3-06, 1984.

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.

10.Be2 Bf6 11.d4 Bf5 12.Nc3 Nc3 13.Bc3 Ne7 14.0-0 Nd5 15.Qd2 Nc3 (15...Be4 16.Rfc1=) 16.Qc3 c6 17.Bd3 Bd3 18.Qd3 c5 19.Rad1 cd4 20.Nd4 Qa5 21.Rb1 b6 (21...Bd4 22.ed4 b6 23.Rb5=) 22.Nc6 Qh5 23.Qd7 Be5 24.g3 Bf6 25.Na7 Qa5 (25...Red8 26.Qb5 Qc5 27.Nc6+=) 26.Nb5 (26.Nc6 Qa3 27.Rb6 Re3+/-) 26...Rad8 27.Qa7 Qa7 28.Na7 Ra8 29.Nb5 Red8 30.Rfc1 g6 31.Rc6 Be7 32.Rb6 Ba3 33.Kg2 Bc5 34.Rc6 Be7 35.Nd4 Ra2 36.Rb7 Bf6?? (better 36...Bd6+/-) 37.Rf6+- Kg7 (37...Rf8 38.g4+-) 38.Rc6 (38.Rff7 Kh6 39.Rh7 Kg5 40.Rbf7 Rd4 41.ed4 Rf2 42.Rf2 Kg4 43.Rf4 Kg5 44.h4) 38...Rd5 (38...Kg8 39.Rcc7 Rf8 40.Ne6+-) 39.Rcc7 Rda5 (39...Kg8+-) 40.Rf7 Kh6 41.Rh7 (41.Nf3 Rf2 42.Kf2 Ra2 43.Kf1 Ra1 44.Kg2 Ra2 45.Kh3 Rh2 46.Kg4 Rh4 47.gh4 g5 48.Rf6) 41...Kg5 42.Ne6 (42.Rb6 Rf2 43.Kf2 Rf5 44.Kg2 Rf6 45.Rb5 Rf5 46.Nf3 Kf6 47.Rb6) 42...Kf6 (42...Kf5 43.Rbe7 Ke4 44.Rh4 Kd3 45.Rd7 Kc2 46.Rg4+-) 43.Rb6 (better 43.Rbe7 Ke5+-) 43...Ke5 (43...Ra6 44.Ra6 Ra6 45.Nf4+-) 44.Rg7 (44.Nf4 Ra6 45.Re7 Kf5 46.e4 Kg4 47.Ra6 Ra6 48.Re5 Ra1 49.f3) 44...Ra6 (44...Kf6 45.Rgb7 Ra6 46.Nf4 Rb6 47.Rb6 Ke7 48.Ng6 Kd8 49.Rb7+-) 45.Ra6 Ra6 46.Nf4 Kf5 47.Kf3 g5 (47...Kg5 48.h4 Kh6 49.Rg6 Rg6 50.Ng6+-) 48.e4 (better 48.g4 Kf6 49.Nh5 Ke6 50.Rg6 Kd7 51.Ra6 Kd8+-) 48...Ke5 49.Rg5 Kd4 50.Rd5 Kc3 51.h3 Rf6 (51...Kc4 52.h4+-) 52.h4 Rf8 53.h5 Kc4 54.g4 Rh8 55.g5 Rg8 56.Kg4 (better 56.h6 Ra8+-) 56…Ra8 (56...Ra8 57.h6 Rh8+-). Knight286 (2015) - Moon_Palace (2185), Rated Blitz game, lichess.org, 2016.

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 –+.

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 (13.Qc6 Bf3 14.gf3 Re6-+) 13...c5 14.Nb3 Bf3 (14...Be2 15.Re1 Qh4 16.g3=+) 15.Qf5 (15.gf3 Qh4 16.f4 Qg4 17.Kh1 Nf4 18.ef4 Qf4 19.Qh7 Kh7 20.Be5 Be5 21.Kg2 Qg4 22.Kh1 Qh3 23.Nc5 Qf1) 15...Qh4-/+ Threatening mate: Qxh2. Black launches an attack 16.g3 Be4 17.Qf7 Kf7 18.gh4 c4 19.Nd4 c5 20.Ne2 Bd3 21.Nbc3 Rab8 (21...Nc3 22.Nc3 Rab8 23.Ba3 Bf1 24.Kf1-/+) 22.Nd5 Rb2 23.Ndc3 (23.Rfe1 Be5-/+) 23...Rd2-+ 24.Rfd1 Rb2 (24...Be2 25.Rd2 Bd3 26.Rad1+=; 24...Re2?! 25.Ne2 Be5 26.Nf4 Ba1 27.Ra1-/+) 25.Nf4 (25.Ng3 Be5 26.Nge4 Bc3 27.Nc3 Re6-+) 25...Be5 26.Rac1 Rd8 27.h3 (27.Nd3 cd3 28.Ne4 Ra2-+) 27...Rd6 (27...Bf4 28.ef4 Rd4 29.Na4 Ra2 30.Nc5-+) 28.h5 (28.Nd3 Rd3 (28...cd3?! 29.Ne4=) 29.Ne4 Rd1 30.Rd1 c3-+) 28...Bf4 29.ef4 Rd4 30.Na4 Ra2 31.Nc5 Rd5 (31...Rf4?! 32.Nd3 cd3 33.Rd3 Rff2 34.Rd7 Kf6 35.Rc6 Ke5 36.Ra6 Rg2 37.Kh1 Rh2 38.Kg1 Rag2 39.Kf1-/+) 32.Nd3 cd3 (32...Rd3 33.Re1 Rd4 34.f5-+) 33.Rc7 Kf6 34.Kg2 (34.h6 gh6 35.Kg2 Rd6-+) 34...Rd6 (34...h6 35.Rc6 Kf7 36.Rc7 Kg8 37.f5-+) 35.Kf3 a5 36.h6 gh6 37.Rh7 Kg6 38.Rc7 d2 39.Ke4 Re6 40.Kd3 a4 41.Rd7 a3 (41...Ra3 42.Kd2 Rh3 43.Rg1 Kf6 44.Rdg7-+) 42.Kc4-/+ Ra6 43.Kc3 (43.Kb5 Ra8 44.Kc4 Rb2-+) 43…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 (13.Qc6? Ne2 14.Kh1 Ng3 15.fg3 Qf1 16.Ng1 Bf5-+) 13...Nh3 14.gh3 Bh3 The mate threat is Qg6 15.Be5 Bf1 16.Qf1 Qd5 17.Qg2 Threatening mate... how? 17...Re5 18.Ne5 Qe5 19.Nc3 Qe6 20.Ne4 Ba3 21.d4 Rb8 22.Qf3 Rb2 23.Ng3 h6 24.Kg2 Qd5 (24...Ra2? 25.d5 cd5 26.Ra2+-) 25.h3 Qf3 26.Kf3 g6 (26...c5 27.dc5 Bc5 28.a4-/+) 27.Ne4 f5 28.Nf6 Kf7 29.Nd7 Bd6 30.Rc1 (30.Ne5 Be5 31.de5 Ke6-/+) 30...Ra2 31.Rc6 g5 (31...Ke7!? 32.Nb8 a5-+) 32.Nc5-/+ a5 33.Nb7 h5 34.Nd6 cd6 35.Rd6 g4 (35...a4 36.h4 g4 37.Kg3 f4 38.ef4 Ra3 39.Kg2=) 36.hg4 hg4 37.Kg3 a4 38.f3 a3 (38...Re2 39.fg4 fg4 40.Ra6 Re3 41.Kf4=) 39.Rd5= Ra1 40.Rf5 Ke6 41.Re5 Kd6 42.Ra5 a2 43.fg4 (43.Ra6!? Kc7 44.Kg4 Rg1 45.Kf4=+) 43...Rg1 44.Kf3 Rf1 45.Ke4 a1Q Threatening mate: Qb1 46.Ra1 Ra1 47.Kd3 Rg1 48.g5 Rg5 49.e4 Rh5 (better 49...Rg3 50.Kc4 Ke6 51.Kc5-+) 50.Kc3 Rh3 51.Kc4 Re3 52.e5 Ke6 53.Kc5 Rc3 54.Kb4 Rc6 55.Kb5 Kd5 56.e6 Re6 57.Ka4 (57.Ka5 Kc4 58.d5 Rf6 59.d6 Rd6 60.Ka4 Ra6) 57...Kc4 58.Ka3 Rd6 (58...Rb6 59.d5 Kd5 60.Ka4 Kc4 61.Ka3 Rb7 62.Ka2 Kc3 63.Ka1 Kc2 64.Ka2 Ra7) 59.Kb2 Rd4 60.Kc2 0-1. bambinik - Crazy Horse, internet, 2001.

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!?

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.

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 (17.Kc1!?-/+) 17...Bf5-+ 18.Ke2 Bg4 19.f3 Ne3 20.de3 Bc3 21.Rb1 Bc8 22.Nd3 Be6 23.Nc5 (23.Rd1!? Bc4 24.Rb7 Rd3 25.Rd3-+) 23...Bc4 24.Kf2 b6 25.Nb3 (25.Na4 Be5 26.a3 Bd3-+) 25…Bd3 (25...Bd3 26.Bb2 Bb1 27.Rb1 Rd3-+) 0-1. Kirdin,GP - Kuhlmann,AEJ, corr WCCF-6, 1989.

10.Bb3 Bf5 11.0-0 Bd3 12.Re1 Nc4 13.Bc4 Bc4 14.a3 Ba5 15.Nc3 Qd3 16.Qe2 Rad8 17.Qd3 Bd3 18.Rac1 f6 19.Na4 Be4 20.Nd4 Nd4 21.Bd4 Bd2 22.Red1 Bc1 23.Rc1 Bg6 24.Rc7 Rd4 25.h3 Ra4 26.Rb7 Ra3 27.g3 Be4 28.Rb2 Ra1 29.Kh2 Rh1 0-1. retiponziani (1925) - rock170 (2370), ChessWorld.net, 2010.

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.

10.fe3+/- Ne3 11.Qb3 Nc4 12.Qc4+-.

10.fe3+/- Ne3 11.Bf7 Kf7 12.Qb3 Nd5 13.0-0 Kg8 14.a3 Ba5 15.Nc3 Bc3 16.Bc3 Kh8 17.Bg7 Kg7 18.Qb2 Kg8 19.Rae1 Bf5 20.Ne5 Bg6 21.Qb7 Ne5 22.Re5 Nb6 23.Qf3 Qd4 24.Kh1 Qe5 25.Qb3 Qd5 26.Qe3 Rf8 27.Rf8 Kf8 28.Qf4 Qf7 29.Qc7 0-1. Psao (1805) - mailbox (2120), lichess.org, 2019.

10.fe3+/- Ne3 11.Bf7 Kh8?? 12.Qc1 (12.Qb3!? Ng2 13.Kd1 Bf5+-) 12...Ng2 13.Kf2 Qe7 (13...Nf4 14.Qc2+-) 14.Qc4 (14.Bd5 Nf4 15.Qc4 Nd5 16.Qd5 Be6+-) 14...Na5 15.Qd5 (15.Qd4 Bc5 16.Qc5 Qc5 17.Kg2 Qf5–/+) 15...Nf4 16.Bg7 (better is 16.Qb5+-) 16...Kg7+= 17.Qd4 (17.Rg1 Kh6 18.Qb5 Nh3 19.Kg2 Qf7 20.Qb4 Qg7 21.Kf1 Ng1 22.Qh4 Kg6 23.Qg3 Kf7 24.Qc7 Kg8 25.Qg7 Kg7 26.Kg1 Nc4=) 17...Qf6 18.Rg1 (18.Qf6 Kf6 19.Ke3 Bd6–/+) 18...Kf7=+ 19.Ng5 Ke7 20.Qb4 Kd8 (20...Ke8 21.Re1 Ne6 22.Nf3 Qa1=) 21.Qa5? (21.Nf7 Qf7 22.Qd4 Nd5 23.Ke1 Qe8 24.Kd1 Qh5 25.Kc1–+) 21...Nh3–+ (21...Qa1?! 22.Nf7 Ke8 23.Ke3–/+) 22.Ke3 Qe7 (22...Qf4 23.Kd3 Bf5 24.Kc3 Ng1 (24...Ng5?! 25.Qd5 Ke7 26.Qb7 Qe5 27.Kb3=) 25.Qd5 Ke7 26.Qc5 Kf6 27.Nh7 Kg7 28.Qg1 Kh7=+) 23.Ne4+/- Ng1 24.Nbc3?? (better is 24.Qd5 Bd7 25.Qg8 Qe8 26.Qg1+-) 24...Nh3–/+ 25.Nd5 (25.Qd5 Ke8–/+) 25...Qg7 (25...Qe5 26.Rc1 b6 27.Qb5–+) 26.Rc1 b6 27.Nb6?? (27.Qc3 Qh6 28.Kd3 Ba6 29.Kc2=) 27...Qh6–+ 28.Kd3 (28.Kd4 Qb6 29.Qb6 ab6–+ (29...cb6?! 30.Ke5–+)) 28...Nf4 29.Ke3 Nd5 (29...cb6 30.Qg5 Qg5 31.Ng5 Nd5 32.Kd4–+) 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.

10.0-0 Nd3 11.Qb3 Nb2? (better 11...Nc5!? 12.Bf7 Kh8+/-) 12.Bf7+- Kh8 13.Be8 (13.Qb2?! Rf8 14.Qb3 Bd6+=) 13...Qe8 14.Qb2 Bg4 15.Nd4 Nd4? (15...Bd6 16.Nc6 (16.Qb7 Nd4 17.ed4 Rb8 18.Qa7 Ra8=) 16...bc6 17.f4+-) 16.Qd4 (16.ed4?! Bd6 17.Nc3 Bf3+-) 16...Be2? (16...Bd6 17.Nc3 (17.Qg4?! Qe5 18.Rd1 Qa1+/-) 17...Bf5 18.Qd5+-) 17.Re1 (better 17.Qb4 c5 18.Qc5 (worse 18.Qb7 Rb8 19.Qa7 Bf1+-) 18...Bf1 19.Kf1+-) 17...c5 18.Qb2 Bd3 19.Nc3 Qg6 20.Ne2 Rf8 21.Nf4 Qf5 22.Nd3 Qd3 23.Rac1?? (better 23.Rad1+-) 23...Bd2 (better 23...Qd2 24.Qd2 Bd2=) 24.Qd2?? (better 24.Rcd1 Rd8 25.Qb7+/-) 24…Qd2-+ (24...Qd2 25.f4 c4-+) 0-1. James_Flynn (2050) - iordanis (2055), Rated Bullet game, lichess.org, 2015.

10.0-0 Nd3 11.Bc3?? Bc5 (11...Be6 12.Be6 Re6 13.Bb4 Ncb4 14.Nc3=+) 12.Qb3 (better 12.Qc2!? Ndb4 13.Bf7 Kf7 14.Qh7+=) 12...Be6=+ 13.Be6 Re6 14.Qb7?? (better 14.Na3=+) 14...Rb8–+ 15.Qa6 (15.Qb8 Qb8 16.a4–+) 15...Nce5 16.Qc4 Nc4 0–1. retiponziani (1890) – KingOnAString (2225), ChessWorld.net, 2016.

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

10.0-0 a4 11.a3 Bf8 12.Qc2 Be6 13.Nc3 Nb6 14.Bb5 a4 draws heavy fire 14...Bb3 15.Qf5 g6 16.Qh3 Be6 17.Qg3 Bd6 18.Qh4 Qh4 19.Nh4 Nc4 20.Bc1 Reb8 21.d3 Be5 22.dc4? (better 22.d4 Nd4 23.ed4 Bd4 24.Bc4 Bc4 25.Bd2 Bf1 26.Kf1=+) 22...Bc3-+ 23.Rb1 Na5 24.Ba4 Nc4 25.Bc2 Na3 26.Ba3 Ra3 27.Nf3 b5 28.Rfd1? (28.Nd4 Bd4 29.ed4 b4-+) 28...b4 29.Nd4 (29.Be4 b3 30.Ng5 Bc4-+) 29...Bd4 (29...Ba2 30.Rb3-+) 30.Rd4? (30.ed4 b3 31.Be4-+) 30...b3 31.Be4 c5 32.Rd6 c4 33.Rc6 Rba8 34.h4 (34.Rf1-+) 34...Ra1 35.Kh2 (35.Rf1 b2 36.f3 Rf1 37.Kf1 Bf5-+) 35...Rb1 36.Bb1 Rc8 37.Rc8 (37.Rd6-+) 37...Bc8 38.Kg3 Bf5 (better 38...c3 39.h5-+) 39.e4 Be6 (better 39...c3 40.ef5 c2 41.Bc2 bc2 42.fg6 hg6-+) 40.Kf3 c3 41.Ke3 c2 42.Bc2 bc2 43.Kd2 Bb3 44.f4 h5 0-1. pacalmisu (2320) - Strategymaster (2475), Rated Blitz game, lichess.org, 2016.

10.0-0 a4 11.a3 Bf8 12.Nc3 Nc3 13.Bc3 Be6 14.Qc2 Bb3 15.Qb2 Na5 16.Rac1 (16.d3 c5=) 16...c6 (16...Nc4 17.Bc4 Bc4 18.Rfe1=+) 17.d3 b5 (17...Bd5 18.e4 Be6 19.Nd4=) 18.Nd2 (18.Nd4 c5 19.Ba5 Qa5 20.Nb3 ab3 21.Qb3 Reb8+=) 18...Be6 19.Bb4 Nb3 (19...Bb4!? 20.Qb4 Ra6=) 20.Nb3 (20.Bf8 Rf8 21.Rc6 Qd7+/-) 20...ab3 21.Bf8 (21.Rc6? Bb4 22.ab4 Ra2-+) 21...Rf8 22.Rc6 b4 23.Re6 (23.Ra1 ba3 24.Ra3 Ra3 25.Qa3 Qb8+=) 23...fe6 24.ab4? (better 24.Qb3 ba3 25.Qe6 Kh8 26.Qa2=) 24...Ra2-+ 25.Qb3 Re2 26.Qe6 Kh8 27.d4 Qe8 (better 27...Rb2!?-+) 28.Qe8-/+ Re8 29.Rb1 (29.h3 Kg8-/+) 29...Rf8-+ 30.b5? (better 30.Rf1-+) 30...Rff2 (30...Ref2?! 31.b6 Rc2 32.g4-+) 31.b6 (31.h4 Rg2 32.Kh1 Rg3-+) 31...Rg2 32.Kh1 (32.Kf1 Ref2 33.Ke1 Ra2-+) 32...Rh2 33.Kg1 Reg2 34.Kf1 Rb2 35.Rb2 Rb2 36.e4 Rb6 37.Ke2 Kg8 0-1. masterhec (2370) - ACFKC (2405), Rated Blitz game, lichess.org, 2016.

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.

10.a3 Bd6 11.Nc3 Nc3 12.Bc3 g5 (12...Be6 13.Qc2=) 13.Qc2 g4 14.Nd4 Nd4 15.Bd4 Qg5 16.Bd3 Qh5 17.Bb2 (17.Rb1 A) 17...Ba3? 18.Qa4 (18.Qc7?! Bb4+=) 18...Bf5 19.Qa3 Bd3 20.Qd3+-; B) 17...c6=) 17...Bd7 (17...g3 18.Rc1=) 18.0-0-0 (18.Be4 c6+=) 18...b5 (18...Bc6 19.Rdg1 Rad8= (worse 19...Bh2 20.Qc3 Re5 21.Qe5 Qe5 22.Bh7 Kf8 23.Be5 Be5 24.d4+-)) 19.f4 (19.h3!? g3 20.fg3=) 19...b4 (19...Ra6 20.Kb1 Rc6 21.Qb3-+) 20.h3 g3 21.Rhf1 Rab8 (better 21...ba3!? 22.Ba1 a2-/+) 22.Rf3 Qh4 23.Rdf1 (23.ab4 ab4 24.Bh7 Kf8=+) 23...Rb6 24.Kd1 (24.Bh7 Kf8 25.Bd3 ba3=+) 24...ba3-/+ 25.Ba1 Reb8 (25...Bb4 26.Qc7 Rd6 27.e4-/+) 26.Qc3 (26.Bh7!? Kf8 27.Bf5=) 26...Rb2-/+ 27.Ke2? (better 27.Bc2 Bb5 28.d3-/+) 27...Bb4-+ 28.Bb2 Bc3 (28...ab2? 29.Qc7 (29.Qb2?! Bc6+/-) 29...Rd8 30.Rg3 Kf8 31.Rg5+-) 29.Bc3 Bb5 (29...Bc6!? 30.e4-+) 30.Bb5 Rb5 31.Ra1 Rb3 32.Ba5 Qf6 33.Rg3 Kh8 34.Rc1 (34.Bc3 Rc3 35.dc3 Qc3-+) 34...a2 (better 34...Qa6 35.d3 Qa5-+) 35.Rc7?? (35.Bc3 Qc3! 36.dc3 Rb1-+) 35...h5 (35...Qa6 36.d3 a1Q 37.Rg8 Kg8 38.Rc8 Qc8 39.Kf3 Qc6 40.Kf2 Qa2 41.Bd2 Qd2 42.Kg3 Qdg2 43.Kh4 Qh6) 36.Rc8?? (better 36.Rc5 Qh4 37.Rgg5-/+) 36...Kh7 37.Bd8 (37.Rc5 Kh6 38.Bc3 Qa6 39.Kf3 Rc3 40.dc3-+) 37...Qa6 38.Kf2 Qc8 (better 38...a1Q 39.Rg7 Kg7 40.Rc4 Qc4 41.d3 Qc2 42.Kg3 Qe1 43.Kh2 Qcf2 44.Bf6 Kf6 45.e4 Qg3) 39.Bf6 Qg8! 40.Rg8 Kg8 41.g4 hg4 (41...h4 42.g5-+) 42.hg4 Rb1 (42...Rb6 43.Ba1-+) 43.Kf3 Kf8 44.d4?? (better 44.g5-/+) 44…a1Q-+ (44...a1Q 45.f5 Rf1 46.Ke4 Qa8 47.Ke5 Qe8 48.Kd6 Rb1 49.Be7 Qe7 50.Kd5 Qb7 51.Ke5 f6 52.Kf6 Qe7 53.Kg6 Qg7 54.Kh5 Rh1) 0-1. carlos78 (2250) - zuckertort (2420), Rated Blitz game, lichess.org, 2015.

10.0-0 Bd6 11.Nc3 Nc3 12.Bc3 Ne5 (12...Be6!?=) 13.Ne5+= Be5 14.Be5 Re5 15.d4 Re7 (15...Rg5 16.Bf3+=) 16.Bd3 b6 (16...Qd5 17.Qc2+=) 17.Qf3 Rb8 (17...Ra7 18.Rfd1+=) 18.Qg3 (18.Rac1 Bb7 19.Qh3 g6+=) 18...Bb7 19.Rfc1 Rc8 20.Bf5 Rb8 21.Rc2 (better 21.a3+=) 21...Be4? (better 21...Qd5!? 22.Bd3 Rbe8+=) 22.Be4+- Re4 23.Qc7 Qe8 (23...b5 24.Rac1+-) 24.Qa7 a5 25.Rc7 h5 (25...Rc8 26.Qb6 a4 27.Rac1+-) 26.Rf7!! Rg4 (26...Qf7 27.Qb8 Double attack (27.Qb8 Deflection; 27.Qb8 Overloading)) 27.Re7 Qc8 (27...Qf8 28.Qc7+-) 28.Rc7 Qf8 29.Rac1 Kh7 30.h3 Rg5 31.h4 (31.Rf7 Qa3 32.Rcc7 Rg8+-) 31...Rg4 32.g3 Qf3 (32...Rg6+-) 33.Qb8 Rg3 34.Kf1 Rg2 (34...Qh1 35.Ke2 Qf3 36.Kd3 Qf5 37.Kc4 Qf2 38.Qb6 Qe2 39.Kb3 Re3 40.R1c3+-) 35.R7c2 Qh3 (35...Qg4 36.Ke1 Qh4 37.Qb6 Rg1 38.Ke2 Qg4 39.Kd2 Rg2+-) 36.Rc8 Rh2 (36...Rg6 37.Ke2 Qg4 38.f3 Qc8 39.Rc8 Rg2 40.Kf1 Rf2 41.Kf2 g5 42.Rc7 Kg6 43.Qb6 Kf5 44.Rc5) 37.Ke1 Qh4 38.Rh8 (38.Rh8 Kg6 39.Rc6 Qf6 40.Qh2 Qc6 41.Qh5 Kf6 42.Rf8 Ke6 43.Qf7 Kd6 44.Rd8 Qd7 45.Qd7) 1–0. pcmvr – mgilbert, net–chess.com, 2017.

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.

10.0-0 Bg4 11.a3 Bd6 12.Nc3 Nf6 (12...Be6 13.Qc2=) 13.d4 Na5 14.Qc2 Qc8 (14...Be6 15.Nd2=) 15.Rac1 (15.e4 c5 16.Rad1 cd4 17.Rd4 Qc7=+) 15...b5 (15...Qe6 16.Ne5 Be2 17.Ne2=) 16.e4 Bf4 17.Rce1 (17.Rcd1 c5 18.g3 Bd6=) 17...c5= 18.e5 cd4 19.ef6 dc3 20.Bc3 g6 (20...gf6 21.Bd3 Qc7 22.Ba5 (worse 22.Bh7 Kg7=+) 22...Qa5 23.Qc6+=) 21.Bd1 (21.Nd4 Be2 22.Re2 Re2 23.Ne2 Bd6=) 21...Bf5 22.Re8 Qe8 23.Qa2 Nc4 24.a4 (24.g3 Bd6=) 24...Rd8 (24...Qe4 25.Re1 Qd3 26.Qa1=) 25.Re1 (25.g3 Qd7 26.Re1 Qd3+=) 25...Qd7 26.Bb3 Be6 27.ab5 ab5 (27...Qb5?? 28.Re6 fe6 29.Bc4 Rd1 30.Ne1+-) 28.Rd1 Qc7 29.g3 (29.Rd8 Qd8 30.Qe2 Bd5=) 29...Rd1 30.Bd1 Nd6 (30...Nb6 31.Qb2 Bd6 32.Qd2=) 31.Qa8 Nc8 32.Bb2 (worse 32.gf4 Qc3 33.Be2 Qc1 34.Kg2 Qf4 35.Bb5 Qf6-/+) 32...Qc4 33.Qa5 (33.gf4 Qd3 34.Kg2 Qd1=) 33...Bc7 34.Qd2 (34.Qe1 Nd6=) 34...Nd6 35.Be2 (35.Nd4 Bh3 36.Be2 Qd5=) 35...Qe4= 36.Ba3 Nf5 37.Ng5 Qd4 38.Qc1 Bc4 39.Bb2 Qc5 (39...Qd5 40.Bf3 Qd7 41.Be4=) 40.Ne4 (40.Qe1 h6 41.Bc4 bc4 42.Qe8 Qf8=) 40...Qd5 (40...Qc6 41.Bd3=) 41.Nd2 Be2 42.Qc7 h5 (42...h6 43.Qc8 Kh7 44.Qf8=) 43.Bc3 ½-½. wiking (2290) - Plis (2450), internet, 2010.

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.

10.0-0 Rg6 11.Bd3 Rh6 12.Be4 f5 13.Bc2 Bd6 14.g3 Be6 15.Nc3 Qe7 (15...Ndb4 16.Bb3 Nd3 17.Qc2=) 16.Bb3 (16.Bf5 Bf5 17.Nd5 Qd7=) 16...Nb6 17.Nb5 a6 (better 17...Nc4=+) 18.Nbd4+/- (18.Nd6?! Qd6 (worse 18...cd6 19.Be6 Qe6 20.Bg7+/-) 19.Qc2 Bb3 20.Qb3 Qe6=) 18...Nd4 19.Nd4 Nd5 20.d3 Rf8 21.e4 (21.Ne6 Qe6 22.Qf3 c6+=) 21...fe4 22.de4 (22.Ne6 Qe6 23.de4 Qh3 24.Qd5 Kh8 25.Bg7 Kg7 26.Qg5 Kh8 27.Qh6 Qh6-+) 22...c6 23.Bc1 Nc3 24.Qc2 (24.Ne6?! Nd1 25.Bh6 Nc3 26.Ng7 Kh8+=) 24...Nb5 25.Nb5 (25.Nb5 cb5 26.Bh6 gh6 27.f4+-; 25.Be6?! Re6 26.Ne6 Qe6+/-; 25.Ne6?! Re6 26.Be6 Qe6+/-) 1-0. Bonetti,Shane (2110) - Schulz,Hans_Juergen (1955), TT-15 ETC, 2005.

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.

10.0-0 Rh6 11.Nc3 Bg4 12.Qb3 Nc3 (12...Be6 13.Qc2=+) 13.Bc3 (13.dc3 Bd6 14.h3 Na5=) 13...Bc3 (13...Qd6 14.h3 Be6 15.Qb2=) 14.Qc3 (14.dc3 Rb8=) 14...Qd6 15.Rfb1 (15.h3 Bf5=) 15...Bf3=+ 16.Bf3 Qh2 17.Kf1 Nd8 18.g3 (18.Bb7 Nb7 19.Rb7 c5=) 18...Qh3 19.Bg2 Qd7 20.a4 (20.d4 c6–/+) 20...c6 21.a5 a6 (21...Rd6 22.d4=+) 22.d4 Rh5 23.e4 (23.Kg1 Ne6=+) 23...Rb5 (23...Rc8 24.Rd1=+) 24.Rd1 (24.Kg1 Rc8=+) 24...Ne6 25.d5 (25.Kg1 Re8=+) 25...cd5–/+ 26.ed5 Nc5 27.Rab1 Rd8 ½–½. Tregubov,Andrei (2370) – Kharlov,Andrei (2510), Moscow Open A, 2009.

10.Na3 Rg6=+ 11.Rg1 (11.0-0 Bh3 12.Ne1 Be6=+) 11...Bg4 (11...Bf5 12.Nc4=+) 12.Nc2 (12.Nc4 Nb6 13.Nb6 ab6=+) 12...Ba5 (12...Bd6 13.d4-/+) 13.h3 (13.Ncd4 Nd4 14.Bd4 Nf4=+) 13...Bf3 (13...Bf5 14.a3=+) 14.Bf3=+ Ndb4 15.Nb4 Nb4 16.Kf1 Nd3 17.Rb1 Rb6 (17...Rd6 18.Bb7 Nb2 19.Rb2-/+) 18.Qc2 (18.Bd4 c5 19.Qc2 cd4 20.Rb6 Qb6 (20...ab6?! 21.Qd3 Qc8 22.Ke2+=) 21.Qd3 de3 22.de3 Rd8-/+) 18...Nb2 (18...Nb4 19.Qd1 Na2 20.Bd4-/+) 19.Rb2=+ Rb2 20.Qb2 Qd3 The backward pawn on d2 becomes a target 21.Be2 Qd2 22.Qd2 Bd2 23.Bf3 (23.Bd3 Bb4=+) 23...Rd8 (23...Bc3 24.Ke2 Rd8 25.Bb7 Rd2 26.Kf3 Ra2 27.Rd1=+) 24.Ke2 (24.Bb7 Rb8 25.Be4 Rb2=+) 24...Bb4 (24...Bc3 25.Bb7 Rd2 26.Kf3 Ra2 27.Rd1=+) 25.Rb1 Rd2 26.Kf1 a5 ½-½. Schulz,H - Baer,Werner, ETC, 2004.

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 (16...Bd6 17.f4=) 17.g3 Qa5 (17...Bg7 18.f4 gf4 19.gf4=) 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.

10.0-0 Ba5 11.d4 a6 12.Nbd2 b5 (12...Bf5 13.Qb3 Rb8 14.Bc4=) 13.Nb3 Bb6 (13...Bb4 14.a4 Rb8 15.ab5 ab5 16.Qc2=) 14.Rc1 (14.a4 b4=) 14...Bb7 15.Nc5 Bc5 16.Rc5 Nd7 (16...Ne4 17.Rc1=) 17.Rc1+= Nf6 18.Nd2 (18.a4 Qd5+=) 18...Ne7 (18...Qd5 19.Bf3 Qa2 20.Qb3 Qb3 21.Nb3=) 19.Bf3 (19.Qc2 Ned5+=) 19...c6 (better 19...Bd5!?=) 20.Nb3+/- (20.Nb3 Bc8 21.Nc5+/-) 1-0. Borucki – Dobosz, corr 1AMM Poland, 1991.

10.0-0 Be6 11.a3 Be7 (11...Bd6 12.Nc3=) 12.d4 (12.Nc3 Nd5+=) 12...a6 (12...Nd5 13.Qc2+=) 13.Qc2 Qd5 14.Nc3 Qd7 (14...Qb3!? 15.Qb3 Bb3=) 15.Rfd1+- Bf5 16.e4 Bg6 17.Nh4?? (17.d5 Na5 18.Ne5 Qd6 19.Ng6 hg6+-) 17...Qc8?? (better 17...Nd4 18.Qd3 Bc5 19.Ng6 hg6–/+) 18.Ng6+- fg6 (18...hg6 19.e5 Ng4 20.h3+-) 19.d5?? (better 19.e5 Nd7 20.Ne4+-) 19...Ne5+- 20.f4 (20.Qb3 Bd6+-) 20...Nf7? (better 20...Bc5 21.Kh1 Neg4+=) 21.e5+- Ng4 22.Bg4 Qg4 23.Qf2 (23.Ne2 c6 24.h3 Qh5 25.dc6 bc6+-) 23...b6 (better 23...g5 24.Ne2 gf4 25.Nf4 Bh4+-) 24.Rd3?? (better 24.h3 Qh4 25.Qh4 Bh4 26.Rac1+-) 24...Bc5–+ 25.Re3 Be3?? (better 25...g5 26.e6 gf4–+) 26.Qe3=+ Qc8 (26...Nd6 27.Qd4 Nf5 28.Qd2=+) 27.Na4 (27.Ne4 Qf5 28.Qd4 Nd8+= (28...Qf4?? 29.Nf6 gf6 30.Qf4 fe5 31.Qf6+-)) 27...Qf5 (27...Qd7 28.Nc3=+) 28.Rc1 (28.Qd4 Nh6=) 28...Rac8 (28...Re7 29.Qd2=) 29.Qd4 Nh6 30.d6?? (better 30.h3=) 30...cd6–+ 31.Rc8?! (31.Re1 de5 32.fe5 Rc2–+) 31...Rc8 (31...Qc8?! 32.ed6 Qd7 33.Nb6=) 32.ed6 (32.h3 de5 33.fe5–+) 32...Qf7 (32...Qb1 33.Bc1 Rc1 34.Kf2 Qc2 35.Kf3 Rf1 36.Kg3 Nf5 37.Kh3 Nd4 38.d7 Qf5 39.g4 Rf3 40.Kg2 Qg4 41.Kh1 Rf1) 33.Qb6?? (better 33.d7 Rd8 34.Nb6=) 33...Qc4?? (better 33...Qd5 34.Nc3 Qd3–+) 34.d7+- Nf7 35.dc8Q Qc8 36.Nc5 Qe8 (36...Qd8 37.Qd8 Nd8 38.Na6+-) 37.Qe6 (better 37.Ne6 Nh6+-) 37...Qb8 (37...Qe6 38.Ne6 Nd6 39.a4+-) 38.Qa6 (better 38.Nd7 Qa7 39.Kf1 Qa8+-) 38...Qe8 (38...h5 39.Nd3 Kh7 40.a4+-) 39.Kf2 (39.Qe6 Qe6 40.Ne6 Nd6+-) 39...Qd8 (39...Qb8 40.Nd3 g5 41.f5+-) 40.Ne6 Qd2 41.Qe2 Qd6 (41...Qd5 42.Ng7 Nd6 43.Qe6 Qe6 44.Ne6+-) 42.Ng7 (better 42.Qe3 Qd7+-) 42...Qc5 (42...Qf4 43.Kg1 Nd6 44.Qe6 Kf8 45.h3+-) 43.Kf1 h6 (43...Qc6 44.Qe8 Qe8 45.Ne8+-) 44.Qe8 Qf8 45.Qf8 Kf8 46.Ne6 (46.f5!? gf5 47.Nf5 Ke8+-) 46...Ke7 47.Nc5 Kd6 (47...g5 48.f5 Nd6 49.f6 Kf7 50.a4+-) 48.Nd3 Nd8 (48...Ke6 49.a4+-) 49.Ke2 (49.Ne5 h5+-) 49...Nb7 50.Kd2 (50.Ne5 Ke6+-) 50...Na5 (50...Kd5 51.Kc3+-) 51.Kc3 Kd5 52.Nb4 (52.a4 Nc4+-) 52...Kc5 (52...Ke4+-) 53.Nd3 Kb5?? (53...Kd5 54.a4 Nc4+-) 54.Ne5+- Nc6 (54...Kc5 55.Ng6 Nc4 56.f5+-) 55.Ng6 Kc5 56.f5 Kd6 57.Kd3 Kd5 58.f6 Ke6 59.Nh8 Nd8 60.a4 h5 61.a5 (61.a5 Kd6 62.Kc4+-) 1–0. Lord Cuthbertson (1760) – keeder (1745), ChessWorld.net, 2007.

10.0-0 Bf5 11.a3 Ba5 12.Nc3=.

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.

10.0-0 Bf5 11.a3 Nb6 12.Nc3 (12.d4 Na5=) 12...Bd3 13.Nb5 Rc8 14.Bc3 (14.Re1 a6 15.Nbd4 Nd4 16.Nd4 Be2 17.Ne2 Nc4=+) 14...a6 (14...Be2 15.Qe2 a6 16.Nbd4 Nd4 17.Nd4=+) 15.Nbd4= Be2 (15...Nd4 16.Nd4 Be2 17.Ne2=) 16.Ne2 Qd3 17.Nf4 Qf5 18.Qb1 Qb1 19.Rfb1 Rb8 20.a4 a5 (20...Bd6 21.a5 Nd7 22.Nd3=) 21.Rb5+= Bb4 22.Bb4 ab4 23.d4 Nc4 (23...Red8!?+=) 24.d5+/- Nd6 25.Rc5 (25.dc6 Nb5 26.ab5 b3+/-) 25...Na5?? (better 25...Ne4 26.Rc4 Na5 27.Rb4 c5+/-) 26.Ra5+- 1-0. Pierre – Litterman, internet, 2020.

10.0-0 Bf5 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 The pressure on d3 grows 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.

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.

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.

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 (17...Qc6 18.Bf3 Qc5 19.Bb7 Bd3 20.Rfd1=) 18.Rfd1 c6 19.Qb2 Qe7 20.d4 Ra5 21.h3 (21.Qb4 Qb4 22.ab4 Ra1 23.Ra1 a6=) 21...Be6 22.Qb4 Qb4 23.ab4 Ra1 24.Ra1 a6 25.Kf1 Nd5 26.Nd5 Bd5 27.Bd3 g6 28.f3 f5 (28...Kg7 29.Kf2=) 29.Kf2 (29.g4 Bf3 30.gf5 gf5 31.Bf5 Rf8=) 29...Rf8 (29...Bf7 30.g3=) 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 (43...Rd7 44.Rd3 b6 45.Kf4=) 44.Kh5 Rb1 45.Rc4 (45.Rd3!?+=) 45...Re1= 46.d5 cd5 47.ed5 Kd5 48.Rc5 Kd6 49.Kh6 Re4 50.h5 Rb4 51.Rg5 Rb5 52.Rg2 Re5 53.Kg6 (53.Rh2 Ke6+=) 53...Re6= 54.Kf7 Re7 55.Kf8 Rh7 56.Rh2 Kc5? (better 56...Ke6!? 57.Kg8 Rc7=) 57.Kg8+/- Rh5 (better 57...Rd7!? 58.h6 b5+/-) 58.Rh5+- Kc4 59.Rh4 Kc3 60.Rh3 Kc4 61.Kf7?? (better 61.Ra3+-) 61...b5= 62.Rh4 Kc3 63.Ke6 (63.Rh6 b4 64.Rc6 Kd3 65.Ra6=) 63...b4= 64.Kd5 b3 65.Kc5. marekt – traffic, ChessWorld.net, 2004.

10.Bc4 Be6 11.Qc2 Nf4 12.Kf1 Bc4 (12...Ng6 13.Be6 (13.d3) 13...Re6 14.d4 Re8 15.h4 Nf8 16.h5 h6= -0.13; 12...Na5 13.Be6 (13.Ba2 Ba2 14.Ra2 Ne6 15.d3 c5 16.Nbd2 Rc8=+ -0.59) 13...Ne6 14.d3 (14.Kg1 c5 15.d3 Rc8 16.Nbd2 c4=+ -0.50; 14.Nc3 Nc4 15.Kg1 a6 16.Ne4 b5=+ -0.56; 14.d4 c6 15.Kg1 Rc8 16.Nbd2 b5=+ -0.44) 14...c5 15.Nc3 Nc6 16.Kg1 Rb8=+ -0.44) 13.Qc4 Ng6 (13...Ne6 14.Nc3 (14.d3 Qd7 15.Nc3 Ne5 16.Ne5 Be5=+ -0.59) 14...Na5 15.Qa4 b6 16.d3 Nc5=+ -0.50) 14.d4 (14.Kg1 Nge5 15.Ne5 Be5 16.Ra2 Qd7-/+ -0.72; 14.Qg4 Bf8 15.Qf5 Nge7 16.Qc2 Qd7=+ -0.53; 14.Qd5 Qd7 15.d3 a6 16.Nbd2 Rad8=+ -0.50; 14.Qc3 Nge5 15.Ne5 Be5 16.d4 Bd6=+ -0.63; 14.Qb3 Rb8 15.d4 Qd7 16.Kg1 Qe7=+ -0.44; 14.Qc2 Qd7 15.Kg1 Rad8 16.h4 Qg4-/+ -0.72) 14...Nh4 (14...Qd7 15.Kg1=+ Rad8 16.Qb3 Na5=+ -0.47; 14...Qe7 15.h4 Nf8 16.h5 Nd7= -0.25) 15.Nbd2 Nf3 16.Nf3 Qf6 (16...Rb8=+ -0.41) 17.Kg1 Qf5 (17...Rab8 18.Qb3=+) 18.h4 (18.d5 Ne5 19.Be5 Be5=) 18...Ne7 19.h5 h6 20.Re1 Qd5 21.Qc3 Nc6 22.Nd2 f5 23.Rh3 Nb8 (23...Rad8 24.Qc4 Be7 25.Rb1=) 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+-) 27.Qc2 Nc4 28.e5 Ba3 29.h4 h6 30.Nd2 Nd2 31.Bd2 Attacking the isolated pawn on c6 31...Qd7 32.Qa4 Bf8 33.Ra1 ½-½. Van Daatselaar,Jan Bart (2200) - Van Gool,Jeroen JW (2030), NED KW-A email, 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 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.Be2 Bf5 11.Nc3 Nb6 12.0-0 Na5 13.Nd4 Bg6 14.Ncb5 Be5 15.f4 Bf6 16.Rc1 c5 17.Rc5 a6 18.Nc7 Rc8 19.Ne8 Rc5 20.Nf6 Qf6 21.Qb3 Qd6 22.Nf3 Be4 23.Ne5 Rc7 24.Rc1 Bd5 25.Qd3 Re7 26.Nf3 Qe6 27.Nd4 Qg6 28.Bf3 Time forfeit 1-0. RichardSommer (2090) - yul94 (2105), lichess.org, 2020.

10.Be2 Bg4 11.0-0 Qd7 12.Nc3 Nc3 13.Bc3 Qf5 14.h3 Bh3 (14...Bh3 15.Ne1 Re6=+) 0-1. Knight286 (2155) - Reeceys (2115), Rated Blitz game, lichess.org, 2016.

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.

10.0-0 a6 11.Ba4 Bg4 12.h3 Bh5 13.g4 (13.a3 Ba5=+) 13...Bg6-/+ 14.Bc2 Rad8 15.Nh4 (15.a3!? Bc5 16.d4 Bc2 17.Qc2=+) 15...Bc2-+ 16.Qc2 Qh6 17.Nf5 Qh3 18.f3 Nf4! Threatening mate: Qg2 19.Rf2 (19.ef4 Re2) 19...Nd3 20.Rh2 (20.Bg7 Nf2 21.Kf2 Qh2 22.Ke1 Ne7 23.Ne7 Re7-+) 20...Ne1 (better 20...Qf3 21.Ng7 Re4-+) 21.Rh3=+ Nc2 22.Ng7 Re3 (22...Re5!? 23.a3 Bd2 (23...Kg7?! 24.ab4 Na1 25.Ba1-/+) 24.Be5 Be3 25.Kg2 Ne5-+) 23.de3 Rd1 24.Kg2 Na1 25.Ba1 Rb1 26.Bf6 Rd1 27.Nf5 (27.Kg3 Bd6 28.f4 Be7-/+) 27...Rd2 28.Kg3 Bf8 (better 28...Ra2!? 29.g5 b5-+) 29.Rh5 Bd6 30.f4 (30.Nd6 Rd6 31.g5 Rd2=+) 30...Ra2-/+ 31.Rg5 Kf8 32.Nh6 (32.Rg7 Be7 33.Ne7 Ne7 34.Rh7 Ke8=+) 32...Ne7 (32...Ke8!? 33.Rg8 Kd7 34.Nf7 Rd2-/+) 33.Rg7=+ Ra3 34.Rh7 (34.Kf2 Ke8 35.Nf7 Bc5=) 34...Ke8 (34...Re3 35.Kf2 Ke8 36.Ke3 Nd5 37.Kf3 Nf6 38.Rf7+/-) 35.Kf2 Bc5 (35...Nd5!? 36.Bd4 Ra2 37.Kf3 f6=+) 36.Be7 (worse 36.Nf7 Be3 37.Ke1 Bf4-+) 36...Ke7 37.Rf7 Ke8 ½-½. Hoffmann,Piotr - Sokolowski,Mieczyslaw, corr 1AMM Poland, 1991.

10.0-0 Bg4 11.Nc3 (11.a3 Ba5=+) 11...Rad8 12.Nd5 (12.Rc1 Nc3 13.Bc3 Ba3=) 12...Qd5 13.Bc6 bc6 (13...Qc6 14.Ne5 Bd1 15.Nc6 bc6 16.Rfd1 Rd2 17.Rd2 Bd2 18.Bd4=) 14.d4 Bd6 15.h3 Bf5 16.Nh2 (16.Qe2 Be4=+) 16...Re6 (16...c5 17.dc5 Qc5 18.Qf3-/+) 17.Qb3 (17.Nf3 Be4 18.Ne1 Rb8-/+) 17...Qe4 (17...Rg6 18.g4-/+) 18.Rfe1 (18.Rfd1 Rg6 19.g4 Bh2 20.Kh2 Bg4-+) 18…Bh3 (18...Bh3 19.gh3 Rg6 20.Ng4 h5-/+) 0-1. Woschkat,Karl_Heinz - Leisebein,Peter (1625), DESC, 1999.

10.a3 Qc5 11.Be2 (11.Bc6 Ne3 12.Be8 Nd1 13.Kd1 Bg4 14.ab4 Qb4 15.Bf7 Kf7=+) 11...Ba5=+ 12.0-0 Bf5 13.Qb3 Rad8 14.Bc4 (14.Rc1 Qb6 15.Qb6 Bb6=) 14...Bb6 15.d4 Qd6 16.Bc3 Bg6 17.Rc1 Ne3 18.fe3 Re3 19.Kh1 Nd4 20.Qd1? (20.Nd4 Bd4 21.Ra2 (21.Qb7 Be4 22.Bd4 Bb7 23.Be3 Qe5–/+) 21...Bb1 22.Bf7 Kh8 23.Qb1 Bc3 24.Rf1–+) 20…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 (12.a3 Ba5=) 12...Bf3=+ 13.gf3 Qf4 14.Rg1 Nc3 (14...Bf8 15.Nd5 cd5 16.Qc3+=) 15.Bc3+= Bf8 16.Ke2 Re6 (16...Rab8 17.Rg4 Qh2 18.Bg7 Bg7 19.Qc3+/-) 17.Qb2 g6 18.Qb7 Rd8 19.Qa7 Qh2 20.Rg3 Rd7 (20...Bd6 21.Rg4+=) 21.Rag1 (21.a4 f5+=) 21...h6 22.a4 Qh5 23.Rg4 c5 24.Qb7 Rde7 (24...Qf5 25.Qb5=) 25.a5+= Qf5 26.Qb1 Qh5 27.Ba1 Bg7 28.Bg7 Kg7 29.Qa1 Rf6 30.Rf4 Qe5 31.Rf6 Kf6 32.a6 Qa1 (32...Re8 33.a7 Ra8 34.Kd3+/-) 33.Ra1 Re8 34.a7 Ra8 35.f4 Ke6 36.Kf3 h5 37.Kg3 Kd6 (37...c4 38.Kh4+/-) 38.Kh4 Kc6 39.f5 Kb7 (39...gf5 40.Kh5 Kb7+-) 40.fg6 fg6 41.f4 Ra7 (41...c4+-) 42.Ra7 (42...Ka7 43.e4+-) 1–0. SandmanJr (2730) – razzle (2655), ICC, 1999.

10.0-0 Bd6 11.Qb3 Bg4 12.Ne1 Qd7 13.Qc4 Be6 14.Nf3 Rab8 15.e4 Nf4 16.Qc3 The mate threat is Qxg7 16...f6 17.Re1 a6 18.Ba4 Bh3 19.g3 (19.gh3?? Qh3 20.Qc4 Kh8-+) 19...Ng2 20.Re2 Qg4 21.Bc2 Kh8 22.d4 Bb4 23.Qb3 Na5 24.Qd3 Nf4 25.Qe3 g5 26.Rd2 Nc4 (26...Bd2 27.Nbd2 b6 28.d5=) 27.Qb3 a5 (27...Nd2?! 28.Nbd2 Be7 29.Bd1-/+; 27...Bd2?! 28.Nbd2 b5 29.Bd1-/+) 28.a4 (28.Ng5 A) worse 28...Bd2 29.Nf7 Kg7 30.f3-+; B) worse 28...fg5 29.f3 (29.Qc4 Qf3 30.d5 Kg8 31.d6 Re6 32.Qe6 Ne6 33.dc7 Qg2) 29...Nd2 30.Nd2-+ (30.fg4?? Nb3 31.ab3 Rf8 32.gf4 Rf4-+); C) 28...Qg5?! 29.Qc4 Bd2 30.Nd2=+; D) 28...Nd2 29.Nd2 Qg5-+) 28...Nb2 (28...Bd2?! 29.Nbd2 Nb2 30.Qb2 Ne2 31.Kh1-/+; 28...Nd2?! 29.Nbd2 Rbd8 30.Qc4-/+) 29.Ra3 (29.Ne1 Ne2 (29...Bd2?! 30.Nd2 Ne2 31.Kh1-+) 30.Kh1 Re4 31.Be4 Qe4 32.Qf3 Qf3 33.Nf3 Bd2 34.Nbd2 Nd3-+) 29...Nc4! (29...Bd2 30.Nbd2 f5 31.Qb2-/+) 30.Qc4 Deflection from a3 30...Ba3 31.Ne1 Bb4 32.Nc3 c6 33.Bd3 Nd5! 34.Rc2 (34.Qd5 cd5) 34...Qd7 35.Na2 Be1 36.ed5 cd5 37.Qc7 Bd2! 38.f3 (38.Rd2 Re1 The nicest combinations are those leading to mate) 38…Be3 (38...Be3 39.Kh1 Bf2-+) 0-1. bambinik – aesculap, internet, 2001.

10.Nc3 a6 11.Nd5 ab5 12.Nb4 Nb4 13.Qb3=+.

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.

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.

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.

11.Bc6 bc6 12.h3 Bh5 13.Nc3 (13.Na3 Rb8=+) 13...Bd6 (13...Rb8 14.Rc1=+) 14.Na4 (14.Rc1 Rb8 15.Ba1 Nb4=+) 14...Rb8 (14...Nb6 15.Nc3=+) 15.Rb1 (15.Bd4 Nb4=+) 15...Qd7 16.Re1 (16.d4 Rb4 17.Nc5 Bc5 18.dc5 Bf3 19.Qf3 Reb8=+) 16...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 (25...Rd8!?-/+) 26.gf3=+ Qh3 27.Qf4 Qd7 28.Qg4 Threatening mate: Qxg7 28...Qg4 29.fg4 Ng6 30.Bd4 f6 31.f3 (31.Kf1 Rd8 32.Bb2 Rd3-/+) 31...Rb3 (31...Rd8 32.Bf2-/+) 32.Re3=+ Re3 (32...Rb1 33.Kf2=+) 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 24...Qe3 25.Qe3 Re3 26.Nc4 Rg3 27.Kf2 Rh3 28.Rad1+= (worse 28.Nd6 Rd6 29.Bc1 h5=+)) 25.Kh2 Rd2 26.Rf2 Rb2! 27.Rb2 Qe5 28.Kg1 Qb2 29.Rf1 Qb3 30.Kg2 f6 (30...Qe3?? 31.Qf7 Kh8 32.Qf8 Rf8 33.Rf8) 31.Re1 Qa3 32.Qd5 Kh8 33.Kf3 Qc3 34.Qc6 Rg8 35.Rd1 Qc2 36.Qd5 (36.Qd6 Re8 37.Rd3 Qc4-+) 36...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 (46.Rd4 Qb5 47.Ke4 Qc6 48.Qd5 Qc2 49.Rd3-+) 46...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.

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.

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.

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 a6 11.0-0 Qd6 12.a3 Ba5 13.Qc1 Rad8 14.Nc3 Nc3 15.Bc3 Bc3 16.Qc3 Bd5 17.d4 Ne7 18.Rfc1 Rc8 19.Rab1 Ng6 20.Bd1 Qe7 21.a4 Be4 22.Rb2 Nh4 (22...Bd5 23.Be2+=) 23.Ne1 (better 23.Nh4!? Qh4 24.f3+/-) 23...Qg5 24.g3 Ng6 25.Qc5 Qf6 26.Be2 b6 27.Qc3 c5 28.dc5 Rc5 29.Qf6 Rc1 30.Qd4 (30.Qb6 Re1 31.Bf1 Bd3-/+) 30...Re1 31.Bf1 f5? (better 31...Bf5 32.Kg2 Be4 33.f3 Bf3 34.Kf3 Rf1 35.Kg2 Ra1+-) 32.Re2?? (better 32.Qd7!? Rf8+-) 32...Rb1?? (better 32...Ne5 33.Qb2 Nf3 34.Kg2 Rb1 35.Qb1 Bb1 36.Kf3 Be4 37.Kf4 Bd3-/+) 33.Qc4 Kh8 34.f3 (better 34.f4 b5 35.Qc7+/-) 34...Bf3 (better 34...Ne5!? 35.Qc7 Nf3 36.Kf2 Nh2=+) 35.Rf2 (35.Rf2 Ne5 36.Qc3=) 1-0. RobertFontaine (2540) - gregbaranov (2200), Rated Blitz game, lichess.org, 2015.

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.

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.

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 (21.Bf3 Nd3 22.Qc2 Nb2 23.Qb2 Ne5 24.Bb7 Nc4+=) 21...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 (30...Rd8 31.Bb2=) 31.Be1 (31.Qc4 Rf7=) 31...Qf7 (31...Nf6 32.Qc4 Rf7 33.f3=) 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 (21...a5 22.Ra1–/+) 22.Nfd2 (22.Ncd2!?–/+) 22...b5–+ 23.Nb2 Re6 (23...Bd6 24.Rc3 Nb4 25.Qb1–+) 24.Rfc1 Rd8 25.Nb3 Be7 (25...Ne5 26.de5 Qd3 27.Nd3 Rd3 28.Nd4 Re5 29.Rc7–+) 26.Nc5 (better is 26.e4 Qd7 27.Qh3=) 26...Nb4–/+ 27.Qd2 Nc2 28.Ne6 Qe6 (28...Nd4 29.Nd4 c5 30.Rd1 cd4 31.ed4–/+) 29.Qc2 Qa2 (30.Rf1 c5 31.dc5 Rc8=+) =+. Wartig,Wolfgang – Koegler,Klaus, corr ICCF–Cup8/9 V167, 1990.

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.

11.Be5 Re5 12.Be2 (12.Nc3 c6 13.Nd5 A) worse 13...Rd5 14.Qb3 Bf3 15.Bd5 (15.Qb4 Rg5 16.g3 b5–/+) 15...Qd5 16.gf3 (worse 16.Qb4 c5 17.Qf4 Bg2=+) 16...Qg5 17.Kh1+-; B) 13...cd5=) 12...Re7 (12...Rh5 13.h3 Bh3 14.gh3=) 13.h3 Bh5 14.a3 (14.Qb3 c6=) 14...Bd6 (14...Ba5 15.Qb3=+) 15.d3 (15.Nc3 Nc3 16.dc3 c6=+) 15...c5 (15...c6 16.d4–/+) 16.Qc2=+ Qd7 17.Nc3 Nc3 18.Qc3 Rd8 19.Qc2 (19.Rab1 h6=+) 19...b5 (19...h6 20.Rfd1=+) 20.d4 Bf3 21.Bf3 cd4 22.ed4 Bc7 (22...g6 23.d5=+) 23.d5= Qd6 24.a4?? (better 24.g3=) 24…Qh2 0–1. retiponziani (1755) – marekt (2405), ChessWorld.net, 2013.

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+=.

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.

11.Kh1 Bg4 12.Nh4? Be2-/+ 13.Qe2 Qe4 14.Nf3 Nf4 15.Qb5 Nd3 16.Nc3 Qg6 (16...a6 17.Qh5 (17.Qb7?? Qc4 18.Qc7 Nb2-+) 17...Qc4 18.Rfb1-+) 17.Rab1 Nb2 (17...a6!? 18.Qg5 Qg5 19.Ng5 Re5-/+) 18.Rb2=+ Bc3 19.dc3 b6 20.Nd4 Ne5 21.a4 (21.Rd1 c5 22.Ne2 Qg4=+) 21...c6 22.Qb3 (22.Qe2 Rad8=+) 22...Rad8-/+ 23.a5 b5 (23...ba5!? 24.Ra2 c5-/+) 24.a6 Nd3 25.Ra2 h6 26.c4 b4 27.c5 Nc5 (better 27...Rb8!?-/+) 28.Qb4= Ne4 29.Qb7 c5 30.Nc6 Rd2 31.Rd2 Nd2 32.Re1 Ne4 33.Kg1 Nd2 (better 33...Ng5 34.Kf1 Qd3 35.Kg1 Qg6=) 34.Qd7?? (better 34.Na7 Kh7 35.Rc1+/-) 34...Nf3-+ 35.Kf1 Nh2 36.Kg1 Nf3 37.Kf1 Nh2 (37...Re6!? 38.gf3 Rc6-+) 38.Kg1-/+ Re6 39.Kh2 (39.Na7 Nf3 40.Kf1 Ne1 41.Ke1 Rd6 42.Qe8 Kh7-+) 39...Rc6 40.Qa7 Ra6 (better 40...Qd6!? 41.Kg1 Ra6-/+) 41.Qc5= Qd6 ½-½. Timmermans,M (2375) - Erdos,V (2605), European Blitz, 2018.

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 21...Nc4 22.Nc4 Qg6=) 22.Bd5+- (22.Bd5 Kf8 23.Bf7 Be4 24.de4+-) 1-0. Teichmann,Erik (2385) - Steadman,Michael (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 +=.

11.0-0 Qh6 12.Nc3 Nc3 13.dc3 Bg4 14.h3 Be6 15.Nd4 Rad8 (15...Nd4 16.cd4 Qg5 17.Bg4=+) 16.Qa4 Nd4 17.cd4 Bb6 18.Bf3 c6 19.Qc2 Bd5 20.e4 (20.Bd5 Rd5 21.e4 Qg6=+) 20...Be6 (20...Qg6!? 21.Rfe1 Be6-/+) 21.Rfd1 Rd6 (21...Qg6 22.Kh1=+) 22.a4 Bh3 (22...Red8 23.d5 cd5 24.a5+=) 23.gh3 Rg6? (better 23...Qh3!? 24.Bg2 Rg6=) 24.Kf1+- Qh3 25.Ke2 Qe6 (25...Qf5 26.Rg1+-) 26.a5+- Bc7 (26...Bd8 27.a6 b6 28.e5+-) 27.Qd3 (27.e5 a6+-) 27...f5 (27...Bf4!?+-) 28.e5 Rd8 29.Qe3 (29.Qc2 Rb8+-) 29...Rh6 (29...Qc4 30.Rd3+/-) 30.Rh1 (30.Rdc1 a6+-) 30...Qc4 31.Qd3 (better 31.Ke1 Re6 32.a6 ba6 33.Bd1+-) 31...Qb4? (31...Qd3 32.Kd3 Rh1 33.Bh1 Be5 34.a6+-) 32.Qc3?? (32.Bc3 Rh1 33.Bb4 (worse 33.Bh1 Qb3 34.f4 Qe6+-; 33.Rh1?! Qb3+-) 33...Ra1 34.Qb3 Kh8 35.e6 Ba5 36.e7+-) 32...Qb5+/- 33.Kd2?? (better 33.Ke1 Rh1 34.Bh1+/-) 33...Be5-+ 34.Rh6?? (better 34.Qa3 Bd4 35.Qa2 Kh8 36.Bd4-+) 34...gh6 (better 34...Bd4 35.Qc2 Bf2 (35...gh6?! 36.Bd4 Rd4 37.Ke1=) 36.Kc3 Bd4 37.Kd2 Qb2-+ (37...gh6?! 38.Bd4 Rd4 39.Ke1-+)) 35.Be2 (better 35.Rg1 Kf7 36.Bh5 Kf6 37.Rb1=) 35...Qd5?? (better 35...Bd4 36.Rg1 Kf8 37.Bb5 Bc3 38.Kc3 cb5=) 36.Bc4+- Bd4 (36...Bf4 37.Kd3 a6 38.Bd5 Rd5 39.Qb3+-) 37.Qd4 Qc4 (37...Kf8 38.Ba3 Ke8 39.Re1 Qe4 40.Re4 fe4+-) 38.Qd8 Kf7 39.Qd7 Kg6 (39...Kf8 40.Qf5 Ke7 41.Re1 Kd6 42.Qf8 Kc7 43.Re7 Kd6 44.Re8 Kc7 45.Qe7) 40.Rg1 Kh5 (40...Qg4 41.f4 Qg2 42.Rg2 Kh5 43.Qf5 Kh4 44.Bf6) 41.Qf5 (41.Qf5 Kh4 42.Bf6) 1-0. alzaeem1973 (2120) - samuelebisi (2120), Rated Blitz game, lichess.org, 2016.

10.0-0 a6 11.a3 Rb8 12.Qc2 Nce7 (12...Bg4 13.Nc3 Nc3 14.Qc3=+) 13.d3 Ng6 14.Rc1 Bg4 15.Nbd2 Qe7 (15...Ngf4 16.Bf1 Ng6 17.h3 Bf3 18.Nf3=) 16.Bf1 (16.Ne4 Rbc8+=) 16...Nh4 17.Nh4 Qh4 18.g3 Qh6 19.Bg2 c6 20.Re1 Qg6 21.Nf3 Re7 22.Qd2 (22.Rab1 Qh5 23.Nd2 Re6=) 22...Qh5=+ 23.Nh4 Bc7 24.Bd5 (24.h3 Be6=+) 24...Qd5 25.e4 Qd7 (25...Qh5 26.Rac1=+) 26.Qg5 f6 27.Bf6 Rf7 28.Bb2 Bb6 (28...Rbf8 29.Rab1=+) 29.d4= Rbf8 30.Nf5 (30.Qe3 Bd8 31.Ng2 Ba5=) 30...Bf5-/+ 31.ef5 Rf5 32.Qe3? (32.Re7 Bd4 33.Rd7 Bf2 (33...Rg5? 34.Bd4 Rf7 35.Rd8 Rf8 36.Rd6+-) 34.Kg2 Rg5 35.Rb7 Bc5=+) 32...Rd5 (better 32...Rf2 33.Qf2 Rf2 34.Kf2 Bd4 35.Bd4 Qd4 36.Kf3 Qc3 37.Kg2 c5-+) 33.Rad1 Rd8 34.Qb3 Ba7 (34...Ba5 35.Re4=+) 35.Re4= Qf7 36.Rde1 R5d7?? (better 36...Rf8 37.f4 Rb5 38.Qf7 Kf7=) 37.Re8 (37.Re8 Re8 38.Re8) 1-0. Holz auf der Heide - Posselt, 2000.

10.0-0 Be5 11.Be5 Ne5 12.d4 Nf3 13.Bf3 Qg5 14.Bd5 Qd5 15.Nc3 Qg5 16.Qf3 c6 17.h3 Be6 18.Ne4 Qd5 19.Nd2 b5 20.Rfc1 Qf3 21.Nf3 Bd5 22.Kf1 f6 23.Nd2 a5 24.Nb3 a4 25.Nc5 Bc4 26.Ke1 Re7 27.Kd2 g5 28.g4 Kg7 29.Nd3 Rae8 30.Nb2 Bd5 31.Rg1 Kg6 32.Nd3 h5 33.Nb4 f5 34.Nd5 cd5 35.gf5 Kf5 36.Rab1 Rb8 37.a3 Reb7 38.Rgc1 b4 39.ab4 Rb4 40.Rb4 Rb4 41.Ra1 Ke4 42.Ra2 g4 43.hg4 hg4 44.Ke2 Rb1 45.Ra4 Rb2 46.Kf1 Kf3 47.Ra1 Rf2 48.Kg1 Re2 (48...Ke3?? 49.Ra3 Kd4 50.Kf2+-) 49.Ra5 (49.Rf1 Ke3 50.Rf5 Kd4-+) 49...Ke4 (49...Re1 50.Kh2 g3 51.Kh3 Rh1) 50.Kf1 Re3 51.Kf2 g3 52.Kg2 Kd4 53.Ra4 Kd3 54.Ra3 Ke2 55.Ra2 Kd3 56.Ra3 Ke4 57.Ra4 d4 58.Rb4 Rc3 (58...Kd3 59.Ra4-+) 59.Ra4 (59.Rb8-+) 59...Ke3 60.Kg3 Ke2 61.Kg2 d3 62.Re4 Kd2 63.Kf2 Rc1 (better 63...Kc2 64.Rd4 Rc8 65.Ra4-+) 64.Re8 Rc6 65.Rd8 Rc4 66.Rd7 Rf4 67.Kg3 Ke3 (better 67...Rf1-+) 68.Rd3= ½-½. Hal1958 – Renard, playchess.de, 2004.

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 (11...Be6 12.0-0=+) 12.d4 (12.Ne5 Be5 13.Be5 Re5=) 12...Nf3=+ 13.Bf3 c6 14.0-0 (14.d5 cd5 15.Bd5 Qe7=) 14...Qc7 15.g3 Bf5 16.Re1 Be4 17.Be4 Re4 18.f3 Re6 19.Kg2 (19.e4 Rae8=+) 19...Rg6 20.f4 f5 21.Rb1 (21.Qb3 Kh8=+) 21...Qf7= 22.Qb3 b6 23.Qf7 Kf7 24.e4 (24.Kf3 Rh6 25.Re2 Re8=+) 24...fe4 25.Re4 Re6 26.Rbe1 (26.Re6 Ke6 27.d5 cd5 28.Bg7 Rc8=) 26...Rae8 27.Kf3 g6 28.h3 c5 (28...h6 29.Bd2=) 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.

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.

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 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 Be7 11.d4 Bf5 12.Nc3 Nc3 13.Bc3 Qd5 1-0. s583 (2000) - evilcoyote (2320), Rated Blitz game, lichess.org, 2016.

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 Bd6 11.0-0 Ncb4 12.Qd1 (12.Qc1 Bf5 (12...Qd7 13.Nc3 h6 14.a3 Nc6 15.Qc2 Bf5 16.Qb3 Nf6 17.Nb5 Na5; 12...Qe7 13.Nc3 Nc3 14.dc3 Nc6 15.Qc2 Qf6 16.Rfd1 Rad8 17.c4 Qg6; 12...f6 13.Nd4 Bf7 14.a3 Na6 15.Nc3 Nc5 16.f4 Nc3 17.Bc3 Ne4; 12...Bg4 13.Qc4 Bf5 14.Nd4 Be4 15.Nc3 Nc3 16.Qc3 Qf6 17.f3 Qh4) 13.Nc3 c6 14.Nd5 Nd5 15.a4 Qa5 16.Nd4 Bg6 17.d3 Rad8) 12...c5 (12...Bf5 13.Nc3 Nc3 14.Bc3 Nd5 15.Bb2 c6 16.Nd4 Bg6 17.Qb3 Qb6) 13.a3 Nc6 14.Qc2 b6 (14...h6 15.Nc3 Nc3 16.Bc3 f6 17.Bd3 Qc7) 15.Nc3 a6 (15...Nc3 16.Bc3 Bd5 17.Bd3 Bf3) 16.Bd3 Nf6 (better 16...h6!?= 17.Bh7 Kh8; 16...g6 17.Nd5 Bd5) 17.Ne4+/- Ne4 (17...h5+/-) 18.Be4 Rc8 19.Bh7 Kh8 20.h4 c4? (20...Be7 21.Be4+/-) 21.Ng5+- Bd5? (21...Be7 22.Ne6 fe6 23.Bg7 Kg7 24.Qg6 Kh8+-) 22.Bf5 Rb8 (22...Be7 23.Qd1 Bg5 24.Qh5 Kg8 25.Qh7 Kf8 26.Qg7 Ke7 27.Qg5 Kd6 28.Qf4 Ke7 29.Bc8 Qc8+-) 23.Bh3 f5 (23...Re4 24.Ne4 Ne5 25.Nd6 Qd6 26.e4+-) 24.Qf5 Bg8 (24...Bh2 25.Kh1 Be4 26.Nf7 Kg8+-) 25.Qg6 Bh2 26.Kh1 Be5 (26...Qf6 27.Bf6 Rb7 28.Qh5 Bh7 29.Qh7) 27.Qh5 (27.Qc6?! Bb2 28.Bd7 Re5+/-) 27...Bh7 28.Qh7 1-0. Fritz 11 – nn, internet, 2011.

10.Qc2 Qd7 11.0-0 Bf5 (11...Bd6 12.Nc3=+) 12.d3= Rad8 13.a3 Ba5 14.Rd1 Re3 15.fe3 Ne3 16.Qb3 Nd1 (16...Be6 17.Qb5 (17.Qb7? Nd1 18.Bd1 Qd3-+) 17...Nd1 18.Bd1 Qd3 19.Qd3 Rd3 20.Ba4=+) 17.Qd1= Qd5 18.Kf1 Qb5 The pressure on the isolated pawn grows 19.Qc2 Bd3 20.Nc3 Bc3 21.Bc3 Be2 (21...Qc4 22.Re1 Ne5 23.Bd3 Nd3 24.Re3=) 22.Qe2+= Qe2 23.Ke2 Ne7 24.Bd2 (24.Rc1 c5=) 24...b6 (24...c5 25.Rc1 b6 26.h4=) 25.a4 (25.Rc1 c5=) 25...f6 26.a5 Rd7 27.ab6 cb6 28.g4 Kf7 29.Rb1 g6 30.g5 Ke6 31.Rc1 (31.gf6 Kf6 32.Bc3 Ke6=) 31...f5 32.Be3 Nd5 33.Rc6 Ke7 34.Bc1 (34.Bd4 Rd6 35.Rc8 a5=) 34...b5=+ 35.Be3 Ne3 36.Ke3 Rb7 37.Nd4 a5 (37...b4 38.Nb3 Kd7 39.Ra6+=) 38.Ra6 (38.Re6 Kf7 39.Rf6 Ke8=) 38...a4 39.Kd3 Rd7 (39...Kd7 40.h3+=) 40.Ra5+= Rd5 41.Rb5 Kd6 42.Rb6 Ke5 43.Re6 (43.Rb4 a3 44.Kc3 Kf4+/-) 43...Kf4 44.Ra6 Kg5 45.Ra4 Kg4 46.Kc4 Rd7 47.Ra3 f4 48.h3 Kh4 (48...Kh5 49.Nf3+=) 49.Nf3+/- Kh5 ½-½. Hoefer,Hans_Peter (1845) - Ventimiglia,Chuck (1910), IECC, 2000.

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 Bg4 14.Nc3 (14.Nbd2 Qd7 (14...h6 15.Rab1 Qd7 16.Rfc1 Nf4 17.Bf1+= 0.53; 14...Be6 15.Bd3 h6 16.Nb3 Be7 17.e4+= 0.38; 14...Nf4 15.Bc4 Nd5 16.h3 Bc8 17.Rfc1+= 0.41; 14...Rc8 15.Bd3 h6 16.Rfc1 Qe7 17.h3+= 0.47; 14...Ra7 15.Bd3 h6 16.Rab1 Qd7 17.h3+= 0.41) 15.Bd3 h6 16.Rab1 Be7 17.e4+= 0.38; 14.Rc1 Be6 (14...Be7 15.Nc3 Nc3 16.Bc3 Qd7 17.Bd3+= 0.38; 14...Qd7 15.Bd3 h6 16.Nbd2 Be7 17.Be4+= 0.34; 14...Qd6 15.Nbd2 Qd7 16.Bd3 h6 17.Be4+= 0.31; 14...Rb8; 14...Ra7; 14...h6) 15.Bd3 h6 16.Nc3 Nc3 17.Bc3= 0.25; 14.Rd1 Qd7 (14...Rb8; 14...h6; 14...Qd6; 14...Qc8) 15.Nc3 Bf5 16.Qb3 Nb6 17.d5= 0.25) 14...Nc3 (14...Rb8 15.Rfc1 Nc3 16.Bc3 Qd5 17.Rab1= 0.06; 14...Qd7 15.Bd3 h6 16.Nd5 Qd5 17.Nd2+= 0.44; 14...Qd6 15.Ne4 Qe7 16.Bd3 Bf3 17.gf3= 0.19; 14...h6 15.Nd5 Qd5 16.Rfc1 Rad8 17.Ne5= 0.09; 14...Ra7 15.Rfc1 Nc3 16.Bc3 Qd5 17.Bb4= 0.19) 15.Bc3 (worse 15.Qc3 Nd4 16.Nd4 Be2-/+ 17.Rfc1-/+ -1.06) 15...Ne7 (15...Qd5 16.Rab1 Bf5 17.Qb3= 0.13) 16.Rab1 (16.Rfb1 Rb8 17.Rc1+= 0.31) 16...b5 (16...Bf5 17.Bd3+= 0.28) 17.Rfe1 (17.Bb2 Nd5+=) 17...Nd5 (17...c5 18.dc5 Bf5 19.e4 Bc3 20.Qc3 Be4 21.Rbd1=) 18.Bb2 Rc8 19.Rbc1 c6 20.Nd2 (20.h3!? Bh5 21.Bd3 Bf3 22.Bh7 Kf8 23.Bf5+= (worse 23.gf3 g6-/+)) 20...Be2=+ 21.Re2 c5 22.Ne4 (worse 22.dc5 Nf4 23.Nb3 Bb2 24.Qb2 Nd3-/+) 22...c4 The passed pawn on d4 will quickly become a dangerous weapon 23.Nf6 Qf6 (worse 23...gf6 24.Qf5+=) 24.e4 Nf4 25.Re3 a5 (25...Qg5 26.g3-/+) 26.d5=+ Qb6 27.Rf3 Qh6 28.Rg3 (28.Rd1 b4 29.Bd4 b3-+) 28...f6 (28...c3 29.Bc3 Ne2 30.Qe2 Qc1 31.Be1 Rc2-+) 29.d6=+ Rcd8 30.Rd1 Re6 31.d7 Re7 32.a4 Qh5 (32...Rdd7 33.Rd7 Rd7 34.ab5+/-) 33.Re1 (33.Rf3 Qg4 34.Rf4 Qf4 35.ab5 Qe4 36.Qe4 Re4 37.h3-+) 33...Red7-+ 34.Bf6 (34.Bc3 b4 35.Bb4 ab4 36.Qc4 Qf7 37.Qb4-+) 34…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.a3 Ba5=.

11.Qc2 Qd6 12.Ng5 g6 (12...f5 13.a3 Ba5 14.Ne6 Qe6 15.Bd3+=) 13.Bc4 (13.a3 Bf5 14.d3 Ba5+=) 13...Nce7 (13...Na5 14.Ne6 fe6 15.Bd5 Qd5 16.Qc7+=) 14.Qe4 Nf5 15.Qf3 (15.Be5 Qc6+=) 15...b5= 16.Bb3 c5 (16...Nh4 17.Qe4 Nf5 18.Be5+=) 17.Ne6 (17.e4 Nh4 18.Qg3 Qg3 19.hg3 c4 20.Ne6 fe6+-) 17...fe6 18.e4 c4 19.Bc2 (19.Bd1+-) 19...Rf8 (better 19...Qf4!? 20.Qh3 Rab8+-) 20.ef5+- gf5 21.Re1 h6 (21...Qf4 22.Qf4 Nf4 23.g3+-) 22.Be5 Qd7 23.Nc3 Rae8 (23...Rad8 24.a4+-) 24.Qh5 Rf7 (24...Qh7+-) 25.Qh6 Rg7 26.Bg7 (26.Bg7 Qg7 27.Qg7 Kg7 28.Nd5 Bd2 29.Re2+-) 1–0. Maciejewski,Roman – Krulisch,Czeslaw, corr Poland, 1993.

11.Qc2 Bd6 12.Bd3 h6 (12...Ncb4!? 13.Bh7 Kh8–+) 13.a3=+ Qd7 14.Nc3 Nb6 (14...Rad8 15.Rfc1 Nb6 16.Bh7 Kh8 17.Be4=) 15.Bh7 Kh8 16.Be4 Nc4 17.Rfb1 Rad8 18.d3 Nb2 19.Rb2 b6 20.Ne2 (20.Nb5 A) 20...ab5? A1) 21.Qc6?! f5 22.Qd7 Bd7=+ (22...Rd7? 23.Bc6+-); A2) 21.Bc6 Qe7 22.Be8 Qe8 23.Nd4+-; B) 20...Ne5 21.Nd6 Nf3 22.Bf3 Qd6=) 20...Na5 21.Nfd4 Be5 22.Re1 (22.Rab1 Rc8=) 22...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? (better 32.a4 b4 33.Qe2–/+) 32...Qd5–+ (32...Ba3?! 33.Qf5 Rf8 34.Qc2–/+) 33.Bd5 g6 (33...Ba3 34.Nf5 Rc2 35.Re1=) 34.a4 ba4 35.Kf1 (35.Ne2 a3–+) 35...Rd8 36.Be6 Rd2 37.Ne2 Nc6 38.Bc4 a3 39.Ba6 (39.Rc1–+) 39…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.d3 Qd7 12.Ng5 (12.a3 Ba5=) 12...Rad8 (12...Bf5!?–/+) 13.Ne6 Qe6 (worse 13...Re6 14.Bg4+-) 14.Bf3 Ne3 (14...Ne5 15.Be5 Qe5 16.d4=) 15.fe3= Qe3 16.Kh1 Rd3 17.Qc1 Qb6? (better 17...Qc1!? 18.Rc1 Ree3=) 18.Nc3+- Bc3 (18...Qc5 19.Bc6 bc6 20.Qf4+-) 19.Bc3 Ree3 (19...Qc5!? 20.Be1 Qc1 21.Rc1 Re7+-) 20.Bd2+- Re6 (20...Re8 21.Bf4+-) 21.Rb1 Qd4 22.Rb7 Rd2 23.Bc6 h6 (23...g6 24.Rc7 Rf2 25.Rd1+-) 24.Rc7 Ree2 (24...f5+-) 25.Rcf7 (25.Rcf7 Rc2 26.Qb1+-) 1–0. Janek – Frederico, internet, 2018.

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 (12...Nc3 13.Bc3 Bc3 14.Rc1=) 13.Nc4 b5 (13...f4 14.a3 Be7 15.ef4=) 14.Nce5= Ne7 (14...Ne5 15.Ne5 f4 16.a4=) 15.Ng5 Qc8 (15...Bd5 16.a4 Rb8 17.ab5 ab5 18.Qc2=) 16.a3 (16.a4 Rb8+=) 16...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.d4 Qf6 12.e4 Nf4 13.Nbd2–/+.

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 31.Qc6 Bb3 32.Bb6 (better 32.Ra1 Bd6 33.Bb6 Bg3 34.hg3 Qg3 35.Kh1+=) 32...Rdc8=+ 33.Qb5 Exerts pressure on the isolated pawn 33...Bd1 34.Rd1 Qg4 35.Rf1 Rc1 (better 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 38...Ra6!? 39.Bf2 a4-/+) 39.ef6= gf6 The passed pawn on h2 will become decisive later 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 (57...Rb3 58.Nd6 Ke5 59.Nc4 Ke6 60.Kf1 Rd3 61.Ke2-/+) 58.Kg2 (58.Kf2 Kd3 59.Nd6 Rb2 60.Kf3 Rh2 61.Nf5 Rh3=) 58...Kd3 (better 58...Rb3!?-/+) 59.Nd6= Rb2 60.Kh3 Rf2 61.Nf7 f4 (better 61...Ke4!?-/+) 62.gf4= Rf4 63.Ne5 Ke4 64.Ng6 Rf6 65.Ne7 Kf3 Threatening mate: Rh6 66.Kh4 Rh6 67.Kg5 Rh2 68.Nf5 ½-½. hal1958 – XANDERKIRV, playchess.de, 2003.

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.

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.

11.Nc3 a6 12.a3 Nf6 13.d4 Nd5 14.Ne4 (14.e4 Nc3 15.Bc3 f5 16.d5 (16.ef5 Bd5= 17.Re1 Qf6 18.Ne5= -0.19) 16...fe4 17.Ne1 Bh2 18.Kh2= 0.16; 14.Bd3 Nc3 (14...h6; 14...Kh8) 15.Bc3 Bg4 (15...h6 16.e4 Na7 17.d5 Bg4 18.h3= 0.25) 16.h3 Bh5 17.g4 Bg6 18.Bg6= 0.06; 14.Qc2 Nc3 (14...Qf6; 14...Qe7; 14...Rb8) 15.Bc3 Bd5 (15...Qe7; 15...f5; 15...Kh8; 15...Ne7) 16.Rfb1 b5 17.Bd3 Bf3 18.gf3= 0.00; 14.Qb1 Nc3 (14...Na5; 14...Qe7) 15.Bc3 Bd5 16.Qf5 Be4 17.Qg4 Qc8 18.Qh5= -0.19) 14...Be7 (14...Bf5 A) 15.Nc5 Rb8 (15...Na5; 15...Ra7; 15...Bc5) 16.Qa4 Qe7 17.Qc4 Nf4 18.Bd1=+ -0.31; B) 15.Nd6 Qd6 16.Rc1= Rad8 17.Rc5 b6 18.Rc1= 0.13; 14...Bg4 15.Bd3 (15.Nd6 Qd6 16.Rc1 Qg6 17.Re1 Bh3 18.Bf1= -0.03) 15...Nf6 (15...Be7 16.Rc1 Qd7 17.h3 Bf5 18.Nc5= 0.00; 15...h6 16.Rb1 Be7 17.h3 Bf5 18.Nf6+= 0.31; 15...Bf8 16.Neg5 f5 17.h3 Qg5 18.hg4+= 0.53; 15...Rc8 16.Nd6 cd6 17.h3 Bh5 18.Rc1= 0.03) 16.Qc2 Bf3 17.gf3 Ne4 18.Be4= 0.00; 14...h6 15.Nd6 (15.Rc1; 15.Nc5; 15.Bd3; 15.Re1; 15.Qd2) 15...cd6 (15...Qd6 16.Qc2 Rad8 17.Rfb1 Re7 18.Bc1= 0.25) 16.Re1 Qf6 17.Rb1 Bf5 18.Rc1= 0.19) 15.Rc1 (15.Qc2 Qd7 (15...f5 16.Nc5 Bc5 17.dc5 Qe7 18.Bd3+= 0.53; 15...Rb8 16.Nc5 Bg4 17.Rfb1 Bc5 18.dc5= 0.19; 15...Bg4 16.Rfd1 Bh5 17.Nc5 Rb8 18.Rab1+= 0.38; 15...h6 16.Rfd1 Qd7 17.Nc5 Bf5 18.Qc4+= 0.44) 16.Bd3 h6 17.Nc3 Nc3 18.Qc3= 0.16; 15.Bd3 Bg4 (15...h6; 15...f5; 15...Bf5; 15...Kh8; 15...Qd7) 16.Rc1 Qd7 17.h3 Bf5 18.Qb3= -0.03; 15.Nc5 Qc8 (15...Bc5 16.dc5 Qe7 17.Qc2 Rad8 18.Bd3+= 0.31) 16.Bd3 h6 17.e4 Nf4 18.Rc1= 0.25) 15...Nf6 (15...Qd7 16.Qc2= Bf5 17.Bd3 Bg6 18.Nc5= 0.06) 16.Nc5 (16.Nf6 Bf6 17.Bd3 g6+= (17...Kh8 18.Qc2+= 0.53) 18.Qc2+= 0.50) 16...Bc8 (16...Bd5!?= 17.Qc2 Bc5 18.dc5= 0.22) 17.Na6+/- ba6 Opening the b-file gets White a lot of play (17...Be6 18.Bb5+/- 0.94) 18.Rc6 Bb7 19.Rc1 Bd6 20.Nd2 c6 (20...Rb8 21.Nc4+/-) 21.Bf3 Rc8 22.Nc4 Bb8 23.Qb3 Re7 24.Bc3 Bc7 25.Qa4 Nd5 26.Ba5 Nb6 (26...Rb8 27.Bc7 Qc7 28.Na5+-) 27.Bb6 Bb6 28.Rb1 Bc7 29.Rb7 Bh2 30.Kh2 Rb7 31.Qa6 Qc7 (31...Rbc7 32.Kg1+-) 32.Kg1 Ra7 33.Qb6 Qb6 34.Nb6 Rb8 35.Nc4 Rc7 (35...Ra6 36.Ra1+-) 36.Rc1 Kf8 (36...Ra8 37.Nd6 Ra6 38.d5+-) 37.Na5 (37.Ne5 Ra8 38.Rc3 h6+-) 37...c5 (37...Ra8 38.Rc5+-) 38.Rc5 (38.dc5!? Rb5 39.Nc6 Rb2+-) 38...Rc5 39.dc5 Rb5 40.Nb7 Rb1 41.Kh2 Ra1 (41...Rf1 42.Kg3 Ra1 43.c6+-) 42.c6 Rc1 (42...Ke7 43.Bg4 Rc1 44.Bd7+-) 43.a4 Ke7 44.a5 g6 (44...Ra1 45.Kg3+-) 45.Kg3 (better 45.a6 Ra1 46.Be2 Ra2+-) 45...Rc4 (45...Ra1 46.Be2 h5 47.a6 h4 48.Kh4 Rh1 49.Kg5+-) 46.Bd5 (46.a6 Rc1+-) 46...Rc3 (46...Rc1 47.a6 Ra1 48.Bc4+-) 47.Kf4 (better 47.a6 Rc1 48.a7 Ra1+-) 47...f6 48.a6 Ra3 49.c7 (better 49.Nc5 Kd8+-) 49...Kd7 50.Nd6 Ra4 51.Kf3 (51.e4 Kc7 52.Ne8 Kd8 53.Nf6 Ra6 54.Nh7 Rd6+-) 51...Kc7 52.Nb5 (52.Ne8 Kd7 53.Nf6 Ke7 54.Nh7 Ra6+-) 52...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 a6 12.d4 Nc3 13.Bc3 Bd5 14.a3 Qe7 15.Bb2 Qe6 16.Qd3 Qh6 17.Ne5 (17.h3 Rad8=+) 17...Be5 (17...Ne5!? 18.de5 Be5 19.Be5 Re5-/+) 18.de5=+ Rad8 19.e4 Be6 20.Qf3 Rd2 21.Bc1?? (better 21.Bc3 Nd4 22.Bd4 Rd4 23.Rfd1=) 21...Nd4-+ (21...Ne5?? 22.Qc3 Red8 23.Qe5+-) 22.Qe3 (22.Qh5 Ne2 23.Qe2 Re2 24.Bh6 gh6-+) 22...Ne2 (better 22...Qe3 23.fe3 Ne2 (23...Re2?! 24.ed4 Bc4 25.Rd1-/+) 24.Kh1 Rc2-+) 23.Qe2 Re2 24.Bh6 gh6 25.f3 (25.Rac1 Re4 26.Rc7 Re5 27.Rb7 Re2-+) 25...Rd8 26.Rad1 Red2 (26...Rd1 27.Rd1 c5 28.Kf1-+) 27.Rd2 Rd2 28.Rc1 c6 29.Rb1 (29.Rc3 Kg7-+) 29...Bc8 (29...b5 30.Rc1 Bc4 31.h4-+) 30.Kf1 Kf8 31.f4 (31.Rc1 Rd3 32.Ra1 Be6-+) 31...Ke7 32.f5 (32.Rc1 Rd3-+) 32...b5 (32...Rd3 33.Ra1 Re3 34.Rd1-+) 33.Rb3 Bb7 34.a4 (34.Rh3 c5 35.Rh6 c4-+) 34...Rd4 35.ab5 cb5 36.Rc3 Rc4 37.Rd3 (37.Rh3 Re4 38.Rh6 Rf4 39.Kg1 Rf5-+) 37...Be4 (37...Re4 38.Rc3 Bd5 39.Rc7 Kd8 40.Ra7-+) 38.Rd6 Bf5 39.Ra6 b4 (39...Bg6 40.Ke2-+) 40.Ra7 (40.Rb6 Bc2-+) 40...Ke6 41.Ra6 (41.g3 Be4 42.Ra2 b3-+) 41...Ke5 42.Rh6 (42.Rb6 Be6 43.Ke2 b3-+) 42...Bg6 (better 42...f6 43.g4 Rg4 44.Ke1-+) 43.Rh3 Kd4 44.Rb3 Rc1 45.Ke2 Kc4 46.Re3 b3 47.Re8 (47.Rb3 Kb3 48.Kf3 Rc3 49.Kf4 Rc2-+) 47...b2 (47...Bd3!? 48.Kd2 Rc2 49.Kd1 Rg2 50.h4-+) 48.Rc8 Kb3 (48...Kd4!? 49.Rd8 Ke4 50.Re8 Kf4 51.g3 Kg4 52.Rb8 Rc2 53.Ke3 Rh2 54.Kd4-+) 49.Rb8 Ka2 (better 49...Kc3 50.Rb2 Kb2 51.Ke3-+) 50.Kd2 (50.Ra8 Kb1 51.Rb8 Rc2 52.Kf3 Rc3 53.Kf4 Kc2 54.Rb2 Kb2-+) 50...Rc2 51.Ke3 Rc3 (better 51...Rg2!? 52.h4-+) 52.Kd4 Rd3 53.Kc4 b1Q 54.Rb1 Kb1 55.h3 (55.g4 Rd2 56.h3 Rh2-+) 55...Kc2 56.h4 Rg3 57.Kd4 Rg2 58.Ke5 Kd3 59.Kf6 Rg4 60.h5 Bh5 61.Ke7 Rg6 (61...f5 62.Ke6 f4 63.Ke7 f3 64.Kd6 Rg6 65.Ke7 f2 66.Kd7 f1Q 67.Ke7 Qf6 68.Kd7 Bg4 69.Kc7 Qb6) 62.Kf7 Ke4 63.Ke7 Kf5 (63...Kd5 64.Ke8 Kd6 65.Kf7 Bf3 66.Ke8 Bd5 67.Kd8 Rg8) 64.Kd7-+ Bf3 65.Ke7 (65.Kc7 Ra6 66.Kd8 Ke6 67.Kc7 h6 68.Kc8 Kd6 69.Kd8 Ra8) 65...h5 (65...Rc6 66.Kf7 Rc7 67.Kf8 Kf6 68.Ke8 Bg4 69.Kd8 Rc8) 66.Kf7 h4 (66...h4 67.Ke7 h3 68.Kd7 h2 69.Kc7 h1Q 70.Kd8 Qh7 71.Ke8 Rg8; 66...Bd5 67.Ke7 Re6 68.Kd7 Rc6 69.Ke8 Ke6 70.Kf8 Kf6 71.Ke8 Be6 72.Kd8 Rc8) 0-1. Williams,Barry M - Aldridge,Alan, NZL North Island Rapid, 2000.

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 (12...Qg6 13.Nb5=+ (13.d3; 13.d4) 13...Bb4 (13...Bc5 14.Nbd4 Nd4 15.Nd4 Rad8 16.Ne6= 0.00; 13...Nb6 14.Nd6 cd6 15.a3 Rac8 16.Rc1= 0.00; 13...Be7 14.Nfd4 Nd4 15.Nd4 Rad8 16.Ne6= 0.03; 13...Rad8 14.Nfd4 Nd4 15.Bd4 b6 16.Na7= 0.00) 14.Nfd4 Nd4 15.Nd4 c6 16.Ne6= 0.00) 13.Ne4= (13.Nb5 Be7 14.Nbd4 Nd4 15.Nd4 Bd6 16.f4= -0.12) 13...Bf5 (13...Be7 14.Nd4 Ndb4 15.a3 Nd4 16.Bd4= -0.22; 13...Nb6 14.Nd6 cd6 15.a3 Rac8 16.Nd4= 0.06; 13...Bb4 14.a3 Be7 15.Bb5 Bd7 16.d3= 0.13; 13...Bf8 14.d3 Rad8 15.Nfg5 Bf5 16.Qb3= -0.06; 13...Rad8 14.Nd6 Rd6 15.Nd4 Nd4 16.Bd4= 0.09; 13...Re7 14.d3 Rc8 15.Rc1 Nb6 16.a3= 0.03) 14.Nd6 Qd6 15.Ra1 (15.d3 Rad8 16.Qd2= 0.03) 15...Qh6 (15...Rad8 16.d4= -0.19 (16.Qb3=)) 16.Qb3 Nb6 17.a4 Be6 18.Qc2 Nd5 19.Bb5 (19.Ba3 Rad8=) 19...Ncb4 (19...Ndb4 20.Qc5=) 20.Qc5 (20.Qb3 c6 21.Bc4 a5=) 20...c6 21.Be2 b6 22.Qd6 (22.Qc1 Rad8=) 22...Rad8 (22...Qg6 23.Rac1=+) 23.Qg3= Nf6 24.Nd4 (24.Bf6!? Qf6 25.d4=) 24...Ne4-/+ 25.Qc7 Rd7 (25...Nd2 26.Rfd1 Rd7 27.Qe5=+) 26.Qe5 Nd2 27.Ne6 Will g7 fall? 27...f6 (better 27...fe6 28.Rfd1 c5=+) 28.Qf5+/- Rd5 (28...Nf1 29.Bf1 Qg6 30.Qh3+/-) 29.Qg4+- White fights for the Initiative 29...Nf1 30.Bf1 Nc2 (better 30...f5 31.Qb4 Qe6+-) 31.Nc7 f5 (31...Qg5 32.Qg5 Rg5 (32...fg5?? 33.Rc1 Ne3 34.fe3 Re3 35.Bc4+-) 33.Ne8 Na1 34.Ba1 Kf8+-) 32.Qc4 Ne3 33.fe3 Qe3 34.Kh1 Re4 (34...Kh8+-) 35.Nd5 (35.Nd5 Rc4 36.Ne3+- (36.Bc4?! cd5 37.Bd5 Kf8=)) 1-0. Mielke,Sven - Buenz,Heinrich, Neubrandenburg op-B, 1999.

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 (21...Qf5 22.Rf5) 22.f6 (22.Nd6 cd6 23.Qb2 Qd5+/-) 22...Nd5+= 23.Nd6 cd6 24.Qf5 gf6 (24...g6 25.Qg5 Nc7 26.Qh6 Ne6 27.Rh3 Qf1 28.Rf1 Rac8 29.Qh7 Kf8 30.Qh8) 25.Bd4+- Re6 (25...h6 26.Rh3+-) 26.d3 (26.Rh3 Kf8+-) 26...Qb3 27.Rh3 Kf8 28.Rf1 (28.Rh7 Ke7 29.Rf1 Ne3 30.Bf6 Ke8+-) 28...Ke8 29.Rh7 Ne7 30.Qh3 Kd7 31.Rf7 Qd3 32.R7f6 Qb3 33.Rc1 (33.Qg4 Rg8 34.Qe6 Qe6 35.Re6 Ke6 36.Rf6 Kd5+/-) 33...Rc8 34.Rc8 Nc8 35.Qg4 (35.Re6 Qe6 36.Qe6 Ke6+-) 35...Qb1 (35...b6 36.h3+-) 36.Kf2 Qe4 (36...Qb3 37.Re6 Qe6 38.Qe6 Ke6 39.h4+-) 37.Rf7 Kc6 38.Qe4 Re4 39.Kf3 Rh4 40.Kg3 Re4 41.h4 d5 42.h5 Nd6 43.Rf6 b6 (43...Kd7 44.Rf4+- (44.Ba7?! Ra4 45.Rd6 Kd6+/-)) 44.h6 (44...Re7 45.Kf4+-) 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?? (better 18...Nf6=) 19.Nf4+- Qf7 20.Nd5 Qd5 (20...Kh8 21.Bc4 Qd7+-) 21.Bc4 (21.Bc4 Qc4 22.Rc4+-) 1-0. Agrest,Roman (2160) - Savegren,Kurt, SWE-ch Seniors, 2007.

11.a3 Bd6 12.Bb5 Rab8 =+.

11.a3 Bd6 12.Qc2 Rad8 13.Nc3 Nc3 14.Qc3 f6 15.Bb5 Bd5 16.Nd4 (better 16.d3!?=) 16...Nd4-/+ 17.Qd4? (better 17.ed4 c6 18.Bc4-/+) 17...c6-+ 18.Be2 (18.Bc4 Be5 19.Bd5 Rd5-+) 18...Be5 19.Qb4 (19.Qa7 Bb2 20.Rab1 Ra8-+) 19...Qb4 (19...c5!? 20.Qa4 Bb2 21.Rab1-+) 20.ab4 Bb2 21.Ra6 (21.Ra7 b5 22.Rb1-+) 21…ba6 0-1. pacalmisu (2370) - Schtroumpf83 (2340), Rated Blitz game, lichess.org, 2016.

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 (13...b5 14.Qc2 Qd7 15.Rfc1=) 14.Nc4 Nf4 (14...Rac8 15.Qb3 Rb8 16.Nd6 Qd6 17.Rac1=) 15.Re1 (15.d5!? Ne2 16.Qe2=) 15...Ne2=+ 16.Qe2 Rad8 (16...Rac8 17.d5 Na7 18.e4=) 17.h3 (17.d5 Na7=) 17...Bh5 (17...Be6 18.Nd6 Qd6 19.e4=) 18.Rad1 (18.d5 Nb8=) 18...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.

11.Nc3 Nc3 12.Bc3 a6 13.a4 Bb4 14.Bb4 Nb4 15.d4 Nd5 16.Qc2 f6 17.Rfb1 b6 18.Qc6 Qd7 19.Qc2 Qd6 20.Nd2 Nb4 21.Qb2 a5 22.Ne4 Qe7 23.Nc3 Bf5 24.Rc1 Rad8 25.Nb5 c6 26.Nc3 Be6 27.Ne4 f5 28.Nd2 Bd5 29.Nc4 f4 30.Nb6 fe3 31.Nd5? (better 31.Rf1!?=+) 31...ef2-+ (31...Rd5 32.Bc4 Kh8 33.Re1 (33.Bd5? Nd3 34.Bc6 Nb2 35.Be8 Qe8-+) 33...Rd4 34.Re3+/-; worse 31...Nd5 32.Bf3= (32.Rc6?? ef2 33.Kf2 Qe3 34.Kf1 Rf8 35.Bf3 Rf3 36.gf3 Qf3 37.Kg1 Nf4-+)) 32.Kf2 Nd5 33.Bc4?? (better 33.Qd2=+) 33...Qe3 34.Kf1 Rf8 (34...Rf8 35.Qf2 Qf2) 0-1. pacalmisu (2350) - AlejandroTC (2480), Rated Blitz game, lichess.org, 2016.

11.Nc3 Qd7 12.d4 Nc3 13.Bc3 Bd5 14.Qb1 h6 15.Nd2 (15.Qb7 Nd4 16.Qb2 Nf3 17.Bf3 Bf3 18.gf3 Qh3-+) 15...a6 (15...f5 16.Bc4 (worse 16.Qb7 Nd4 17.Qa6 Ne2 18.Qe2 Qc6-/+) 16...Rab8 17.Qb3=) 16.Bd3 (16.e4 Nd8+=) 16...Be6= 17.Bh7 (17.Qb7? Reb8 18.Qa6 Ra6 19.Ba6 Nb4 20.Bb4 Rb4-+) 17...Kh8 18.Be4 Rab8 19.Bf3 Bg4 20.h3 Bf3 21.Nf3 Qd5 (21...Kg8 22.Rd1=) 22.Rc1 Bd6 23.Bb2 f5 24.a4 f4 25.ef4 Bf4 26.Rd1 (26.Rc5 Qg8=) 26...Rf8 (26...Re2 27.Bc1 Bc1 28.Qc1=+) 27.Qg6 Rf6 28.Qg4 Rbf8 29.Ba3 (29.Ne5 Kg8= (29...Be5? 30.de5 Ne5 31.Qg3+-; 29...Ne5?? 30.de5 Qe6 31.ef6 Qg4 32.hg4 gf6 33.Rd7+-)) 29...Bd6 30.Bd6 cd6 31.Rab1 R8f7 (31...Kh7 32.Qd7=+ (32.Rb7?? Rg6-+)) 32.Rb7 (32.Rd3!?=) 32...Rb7-/+ 33.Qc8 Nd8! 34.Qd8 Kh7 35.Re1 Rf3 36.gf3 Qf3 (36...Qd4 37.Qc8 Qd5 38.Qg4=+) 37.Qd6= Qh3 38.Qd5 (38.Qa6 Qg4 39.Kf1 Qf3=) 38...Qg4 39.Qg2 Qg2 40.Kg2 Kg6 (better 40...Rb4!? 41.Rd1 Ra4=+) 41.Re6+= Kf5 42.Ra6 Ke4 43.Rd6 (43.a5 Kd4 44.f4 Ke4=) 43...Ra7= 44.f3 Kf5 (44...Kf4 45.Rd8=) 45.Kg3 (45.Rd5!? Kf4 46.a5+=) 45...Ra4= 46.Rd5 Kf6 47.Rd8 g5 48.Kg4 Ra1 49.Rd6 Kg7 50.Kf5 Rf1 51.Rd7 Kf8 52.Kg6 (52.Kg4 Rh1=) 52...Rf3=+ 53.d5 g4 54.d6 g3?? (better 54...Ke8 55.Re7 Kd8 56.Kh6 Rd3=) 55.Rd8 1-0. carlos78 (2340) - LissRachel (2440), Rated Blitz game, lichess.org, 2015.

11.d4 Bf5 12.a3 Na5 13.Nbd2 Rc8 14.Ne5 f6 15.Nec4 c6 16.Rc1 b5 (16...Nc4 17.Bc4 Qd7 18.Re1=) 17.Na5+= Qa5 18.Nb3 Qd8 19.Nc5 Nb6 20.Qb3 Kh8 21.Bh5 g6 22.Be2 Qe7 23.a4 (23.Bc3 Nd7+/-) 23...ba4+= 24.Na4 Be6 25.Qd1 Qb4 26.Nb6 Qb6 (26...ab6 27.Bc3 Qd6 28.Ra1+=) 27.Ba1 Bf5 28.d5 cd5 29.Bf6?? (better 29.Qd5 Kg7 30.Bd4+=) 29...Qf6-+ 30.Ra1 (30.Qd5 Rc1 31.Rc1 Bd6-+) 30...Qf7 (30...Qe5 31.Bf3-+) 31.Qa4 (31.Qd4 Qg7 32.Qd5 Rc5-+) 31...Bg7 32.Ra2 Re7 33.Ba6 Rc3 34.Rd1 Rec7 35.Qb4 h5 (35...Be4 36.Qb8 Qf8 37.Qf8 Bf8 38.Kf1-+) 36.h3 (36.Rad2 Qe6 37.Be2 Be4-+) 36...Rc1 (36...d4 37.Re2 Qe6 38.Qb5 de3 39.fe3-+) 37.Rad2 Rd1 38.Rd1 Kh7 39.g4 (39.Qf4-+) 39...hg4 40.hg4 Be4 41.f4 (41.Be2 Rc2 42.Qb5 Qf6-+) 41...Bc3 (better 41...Qf6 42.Qe1 Qa6 43.Qf1-+) 42.Qb8 (42.Qd6 Bf3 43.Rd3 Be1-+ (worse 43...Bg4 44.Qd5 Kg7 45.Qf7 Kf7 46.Kf2-+)) 42...Qd7 43.Be2 (43.Kf1-+) 43...Rb7 44.Qf8 (44.Qa8 Rb2 45.Ra1 a5-+) 44...Bg7 (better 44...Rb2 45.f5 Re2 46.Kf1-+) 45.Qc5 (45.Qa3 Qd8 46.g5-+) 45...Rb2 46.Kf1 Qd8 47.g5 Qd7 (47...Qd7 48.Rd3 Qh3 49.Ke1 Qg3 50.Kd1 Qg1 51.Bf1 Qf1) 0-1. Lorenz,Alexander (1995) - Wildner,Reinhard (1980), Graz Austria, Steirische Landesliga, 2017.

10.0-0 Qc5 11.d4 (11.a3 Ba5 12.d4 Qb6 13.Qc2 Bf5 14.Qf5 Qb2) 11...Qd6 12.a3 Ba5 13.Nbd2 Qg6 14.Bc4 Be6.

10.0-0 Bd7 11.a3 (11.Nc3 Qc5 12.Rc1 Bg4 13.Nd5 Qd5 14.a3 Bd6) 11...Bd6 (11...Ba5 12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Rad8) 12.Bc4 (12.Qc2 Nf4 13.Bc4 Ng6 14.Bd5 Nh4) 12...Nb6 (12...Be6 13.Qc2 h6 14.Be2 f6) 13.Ba2 (13.Be2 Na5 14.Qc2 h6) 13...Rad8 (13...Bf5 14.d4 Na5) 14.d4 (14.Nc3 Be6) 14...Be6 15.Nc3 Ba2 16.Ra2 Nc4 The pressure on the isolated pawn grows 17.Qc1 Nb2 18.Qb2 Na5 19.Nb5 a6 20.Nd6 Qd6 21.Rc1 b6 22.Qc3 (22.Qb4 Qe6 23.Rd2 Rd7+=) 22...Rc8 23.Rac2 The pressure on the backward pawn c7 grows 23...c5 24.dc5 Rc5 25.Qb2 Rc2 26.Qc2 Qa3 27.Nd4 (27.Qc7 b5=+) 27...g6 (27...b5 28.Qd1-/+) 28.h3 b5 29.Qd1 Nc4 30.Ra1 Qd6 31.Qf3 Rb8 32.Rd1 Rd8 33.Qg3?? (33.Ra1 Qb6=+) 33...Ne5 (better 33...Qg3 34.fg3 Ne3-+) 34.Ra1 Qf6 35.f4? (better 35.h4!?-/+) 35...Nc4-+ 36.Re1 Ne3 37.Re3 Qd4 38.Kh2 Rd5 39.Qf3 Kg7 40.Ra3 Rd6 41.Re3 Qf6 42.Kg3 b4 43.h4 (43.Re5 Rc6 44.Kh2 Rc4-+) 43...h5 44.Kh3 (44.Re5 Rc6 45.Qf2 b3-+) 44...Rc6 45.Qg3 (45.g3 Qf5 46.Kg2 Rc2 47.Kf1 Qh3 48.Ke1 b3 49.Rb3 Qh2 50.Qc3 f6 51.Qc2 Qc2 52.Rb7 Kh6-+) 45…Rc3 (45...Rc3 46.Kh2 a5-+) 0-1. Luneau,Gilles (1740) - Richter,Kurt (2135), Wch Seniors Bad Wildbad, 1997.

10.0-0 Rd8 11.Qc2 (11.a3 Ba5 12.d4 Bf5 13.Qb3 Qe6 14.Nbd2 h6) 11...g6 12.Nc3 Bf5 13.Qb3 Be6 14.Qc2 Nc3.

10.0-0 Nf6 11.Nc3 (11.a3 Bd6 (11...Ba5 12.Nc3 Be6 13.Qa4 Nd5 14.Rac1 Rab8 15.h3) 12.Nc3 Be6 13.Qa4 a6 14.d4 Nd5 15.h3) 11...Bg4 (11...a6 12.a3 Bd6 (12...Bc3 13.Bc3 Ne4 14.Qb3 Rb8 15.Bd3) 13.d4= Bd7 14.Bd3 Bg4 15.h3; 11...Bf5 12.a3 Bc3 13.Bc3 Ne4 14.Qb3 Rab8 15.d4) 12.h3 (12.a3 Bc3 13.Bc3 Ne4= (13...Nd5 14.Bb2 Qd6 15.Qc2) 14.Qb3 Rab8 15.Rfd1) 12...Bh5 (12...Be6 13.a3 (13.Qa4 Nd5 14.Nd5 Bd5 15.a3) 13...Ba5 (13...Bc3 14.Bc3 Ne4 15.Rb1) 14.Bb5= (14.Qa4 Nd5 15.Rfc1) 14...Bc3 15.Bc3; 12...Bf5 13.Qb3 Be6 14.Qa4 Nd5 15.Nd5) 13.Nb5 (13.a3 Bd6= (13...Bc3 14.Bc3 Rab8 15.Qb3) 14.d4 h6 15.d5; 13.Qb3 Qe6 14.Bc4 Qd7 15.Nd5) 13...Ne4 (13...Rad8 14.a3 (14.d4 Ne4 15.Rc1) 14...Ba5 (14...Bf3 15.Bf6) 15.d3=) 14.Nbd4 (14.a3 Ba5 (14...Bc5 15.d4) 15.d3= 0.20/9 (15.Nfd4 Nd4 16.Nd4 Bg6=+)) 14...Nd4=+ 15.Nd4 (worse 15.Bd4 c5 16.a3 Ba5–+) 15...Be2 (15...Bg6!? 16.d3 Ng3 17.fg3 Qe3 18.Kh2 Bc5=) 16.Qe2= Qd7 17.d3 Nf6 (17...Nc3 18.Qc2 Na4 19.Nf3=) 18.Qf3+= Bf8 (18...Nd5 19.Nf5 f6 20.Rac1+=; 18...Qd5 19.e4 Qe5 20.Rfb1+=) 19.e4 (19.Nf5 Qd3 20.Nh6 Kh8 21.Nf7 Kg8 22.Nh6 Kh8 23.Bf6 gf6+-) 19...Rad8 (19...c5 20.Nf5 Re6 21.Rad1=) 20.Rfd1 (20.Nf5 Re6 (20...Qd3? 21.Nh6 Kh8 22.Nf7 Kg8 23.Nd8 Qf3 24.gf3 Rd8 25.Rfd1+-) 21.Rfd1 c5+=) 20...c5 (20...Ba3 21.Ba3 Qd4 22.Rab1=) 21.Nf5+= Re6 22.g4 (22.Rac1 g6 23.Qg3 Ne8=) 22...Ne8 (22...g6 23.Ne3 Qe7 24.g5=) 23.d4 Qb5 (23...Qa4 24.Qb3 Qa5 25.dc5 (25.Qb7 Rb6 26.Ne7 Kh8–/+) 25...Rd1 26.Rd1 Bc5 27.Qb7 Qa2 28.Ra1+=; 23...Qa4 24.Qb3 Qa6 25.dc5 Rd1 26.Rd1 Re4 27.Rd7+=) 24.d5+= Rb6 (24...Qb2 25.de6 Rd1 26.Rd1 fe6 27.Rd8 Qb1 28.Kg2+-) 25.Bc3+- g6 (25...Ra6 26.a4 Ra4 27.Ra4 Qa4 28.Ra1=; 25...Ra6 26.e5+=) 26.Ne3+- Bg7 (26...f6 27.Rac1+-) 27.Bg7 Ng7 (27...Kg7 28.g5+-) 28.g5 Qe8 29.h4 (29.Ng4!? Qe7 30.Nf6 Kh8 31.Qc3+-) 29...Nh5 30.Rac1 (30.Ng4 Rb4 31.e5 b6+=) 30...Qe7 (30...Rb4 31.Rc4+=) 31.Nc4 (31.Ng4 Ra6+-; 31.Ng4 Ra6+-) 31...Rb4 (31...Ra6 32.d6 Qe8 33.e5+=; 31...Ra6 32.d6 Qe8 33.e5+=) 32.Re1 (32.a3 Ra4+=) 32...Rc4 (better 32...Ra4!? 33.Qb3 Rb4+=) 33.Rc4+- Rd5 34.Qc3 (34.Qc3 Re5 35.a4+=; 34.Qc3 Re5 35.Ra4+=) 1–0. 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 Bc3 11.dc3 Rd8 12.Qa4 Nb6 13.Qa3 Qa3 14.Ba3 Bg4.

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 Qc5 11.Nd5 Qd5 12.0-0 Be6 13.Qc2 Bf5 14.d3 h6.

10.Nc3 Be6 11.Qc2 Rad8 (11...Bd6 12.a3=+) 12.0-0 Nc3 (12...Bd6 13.a3=) 13.Bc3= Bd5 (13...a6 14.d4=) 14.a3 Bc3 (14...Ba3 15.Bg7 Kg7 16.Qc3 Qf6 17.Qa3=) 15.Qc3 a6 16.d3 Qd6 17.Rfc1 Rd7 18.Rab1 b5 19.Bd1 Ne7 (19...Na7 20.d4=) 20.a4 c6 21.e4 (21.d4 Be4 22.Ne5 Bb1 23.Nd7 Qd7 24.Rb1 Nd5+=) 21...Ba2 22.Rb2 Be6 23.d4 Qf4 24.Qe3 Qe3 25.fe3 f6 (25...Rd6 26.Kf2=) 26.Kf2 Kf7 27.a5 (27.e5 Bd5=) 27...Rd6 (27...Rc8 28.h4=) 28.Rc5 (28.e5 Rdd8+=) 28...Bc4 29.Bc2 Rd7 (29...h6 30.Nd2 Be6 31.e5=) 30.h4 Red8 ½-½. Schollbach,Tillmann - Benassi,Aspasio, 10 years 2a LSV M/V, 1999.

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.

11.d4 Bg4 12.Qb3 A) 12...Qd7 13.Nc3 Nb6 14.Rfd1 (14.Rad1 a6 15.Qc2 Rad8 16.e4 Qe7 17.h3 Bh5 18.Rfe1=) 14...a6 15.a3 Rad8 16.Qc2 Qf5 17.Qf5 Bf5 18.Rac1=; B) 12...Nb6 B1) 13.Rd1 B11) 13...Rad8 14.d5 Ne5 15.Nbd2 c6 16.dc6 Nc6 17.Rac1 Be6= 18.Qc3=; B12) 13...a5 14.a3 (14.a4 Nb4 15.Nc3 Bf5 16.Rac1 c6 17.Ba3 Rad8 18.Ne5=) 14...a4 15.Qc2 Ra5 16.Nc3 Be6 17.Rdb1 Bb3= 18.Qc1=; B13) 13...Nb4 14.d5 Rad8 15.h3 Bf5 16.Nd4 Bg6 (16...Be4 17.Nc3 N4d5 18.Ne4=+) 17.Nc3 N6d5 (17...N4d5=+ 18.Ndb5=+) 18.Nd5=+; B2) 13.a3 Rad8 (13...Qe6 14.Qe6 Be6 15.Nc3 Bc4 16.Bc4 Nc4 17.Rfb1 a6 18.e4=) B21) 14.Rc1 Qd7 15.Nc3 Na5 16.Qc2 Nac4 17.Rcb1 Qe6 18.e4=+; B22) 14.Nc3 a6 B221) 15.d5 Ne5 16.Nd4 B2211) 16...Be2 17.Nce2 Nec4 (17...Qd7=+ 18.Rfd1=) 18.Nf5=+; B2212) 16...Qh4 17.Bg4 Ng4 18.h3–/+; B222) 15.Rfd1 Na5 16.Qa2 Bf5 17.Bc1 Qd7 18.d5=+; B23) 14.Qc2 Qe6 15.Nbd2 Bf5 16.e4 Be4 17.Ne4 Qe4 18.Bd3=; B3) 13.Nc3 B31) 13...a6 14.Rfc1 (14.a4 Rad8 15.a5 Be6 16.Qc2 Nd5 17.Rfd1 Ndb4 18.Qa4=) 14...Bf5 15.Nd5 Nd5 16.Qd5 Be4 17.Qh5 (17.Qg5 Rad8 18.Qe7=) 17...Nb4= 18.Ne5=; B32) 13...Qd7 14.Rfd1 (14.Rad1 a6 15.Qc2 Rad8 16.e4 Qe7 17.h3 Bh5 18.Rfe1=) 14...a6 15.a3 Rad8 16.Qc2 Qf5 17.Qf5 Bf5= 18.Rac1=; B33) 13...Rad8 14.Nb5 Bb4 15.Bc3 a5 (15...Bc3 16.Nc3 Qf6 17.Rac1 Be6 18.Qb5=) 16.Bb4 ab4 17.Rfb1 (17.Rfc1 Na5= 18.Qb2=) 17...Bf5 18.Rc1=.

11.d4 Bg4 12.Nc3 Ncb4 A) 13.Re1 Nc3 14.Bc3 c6 (14...Bf5 15.Bb4 Bb4 16.Rf1 Be4 17.Bd3 Bd5 18.Ne5=) 15.Bb4 Bb4 16.Rf1 Bd6 17.Qc2 (17.Rb1 Rac8 18.Qb3=+) 17...Rac8=+ (17...c5 18.Rad1=) 18.Rfd1=+; B) 13.Qb3 c6 B1) 14.Ne5 Be6 15.Nd5 Nd5 16.Qc2 Nb4 17.Qb1 Be5 18.de5=; B2) 14.Rfc1 Ne3 15.a4 (15.fe3 Qe3 16.Kh1 Bf3 17.Bf3 Qf4 18.g3–+) 15...Bf3 16.Bf3 Nec2 17.Ne4 (17.Be4 Na1 18.Ra1–+) 17...Na1–+ 18.Ra1–+; B3) 14.Nd5 Nd5 15.Rfe1 Bb4 16.Rec1 Rad8 17.Qc2 Qf6 18.Qb3=; C) 13.a3 Nc3 14.Bc3 Nd5 15.Qb3 c6 16.Bd2 Rad8 (16...Nf4 17.Bd1 Ne6= 18.Bb4=+) 17.Rfb1 Rd7 18.Qc2=+; D) 13.Qd2 D1) 13...c6 14.h3 (14.Rfc1 Rad8 15.Ba3 Nc3 16.Rc3 Qf6 17.Qb2 a5 18.Rd1=+; 14.Rfb1 Bf5 15.Rc1 Nc3 16.Qc3 Nd5 17.Qb3 Rad8 18.Ne5=+; 14.Rfe1 Bf5 15.Rec1 Nc3 16.Qc3 Nd5 17.Qb3 Rad8 18.Ne5=+; 14.Rab1 Rad8 15.Rfd1 Bf5 16.Rbc1 Qe6 17.a3 Nc3 18.Bc3=+; 14.Rac1 Nc3 15.Bc3 Nd5 16.Qc2 Rac8 17.Bd2 Nf4 18.ef4=) 14...Bf5 15.Rfc1 Rad8 16.Ba3 Nc3 17.Rc3 Be4 18.Qb2=; D2) 13...Qe6 14.a3 (14.Rfc1 c6 15.Ba3 Nc3 16.Rc3 a5 17.Qb2 Qf6 18.Rd1=; 14.Rfb1 Bf5 15.Rc1 Nc3 16.Bc3 Nd5 17.Bc4 c6 18.Qb2=+) 14...Nc3 15.Bc3 Nd5 16.h3 Nc3 17.Qc3 Bf5 18.Bd3=; D3) 13...Qf6 14.Nb5 (14.a3 Nc3 15.Qc3 Nd5 16.Qb3 Nf4 17.Qd1 Ng2 18.Kg2–/+) 14...Be7 15.a3 c6 16.ab4 cb5 17.Ne5 Be2 18.Qe2=; D4) 13...a6 14.a3 Nc3 15.Qc3 Nd5 16.Qc2 Qe6 17.Rfe1 Rad8 18.Qb3=+; D5) 13...Nc3 14.Bc3 Nd5 15.Rfb1 c6 16.Rb3 Be6 17.Rb2 Rad8 18.Rab1=+; E) 13.Qb1 Qe6 14.Nb5 (14.Nd5 Nd5 15.Qc2 c6 16.Rfe1 Rad8 17.Qb3 Qe7 18.Rac1=+) 14...Be7 15.Ba3 Bf5 16.Qb3 c6 17.Bb4 Bb4 18.Bc4=.

11.d4 Bg4 12.Nbd2 Ne3 13.fe3 Qe3 14.Rf2 Bh2 15.Nh2 Be2 16.Qb3? (better 16.Qc2=+ Nd4 17.Bd4 Qd4=+) 16...Qd2–+ 17.Qf7 Kh8 18.Raf1 Qe3?? (better 18...h6 19.d5 Qb2 20.dc6 Qb6 21.cb7 Rab8–+ (21...Qb7?! 22.Re1 Qb6 23.Kh1–+)) 19.Re1=+ Nd4 20.Ng4 (better 20.Nf1 Qe5 21.Ng3=) 20...Qg3?? (20...Qd2 21.Ree2 Ne2 (21...Qe2 22.Re2 Rf8 23.Qc7 Ne2 24.Kh2 Rf6 25.Nf6 Rf8 26.Nh5 Rf7 27.Qd8 Rf8 28.Qf8) 22.Re2 Qd1 23.Kh2 Rg8+=) 21.Ree2 Ne2 22.Re2! Rg8 (22...Re2 23.Bg7) 23.Nh6 Qg6 24.Qg6 (better 24.Re6 Rgf8 25.Rg6 Rf7 26.Nf7 Kg8 27.Rg7 Kf8 28.Bf6+-) 24...hg6 25.Ng8 Kg8 26.Re7 Rd8 (26...Rc8+-) 27.Rc7 Rd1 28.Kh2 b5 29.Rg7 Kf8 30.Ra7 (30.Rg6?! Rd2 31.Ba3 Ke8 32.Re6 Kd7 33.Re7 Kc6 34.Ra7 Ra2+-) 30...Rd2 31.Ba3 (31.Bc3 Re2+-) 31...Ke8 32.Bb4 Rd5 (32...Rd7 33.Ra5 Rb7 34.Kg3+-) 33.a3 (33.Re7 Kd8 34.Rg7 Rh5 35.Kg1 Rh6+-) 33...Rh5 (33...Rd7 34.Ra5 Rd5 35.a4 Rh5 36.Kg3 ba4 37.Ra4+-) 34.Kg3 Rg5 35.Kf3 Rf5 36.Kg4 Rf2 37.g3 1–0. Labahn,Wolfgang – Sass,A, Hamburg, 1993.

11.a3 Ba5 12.Qc2 g6 13.Nc3 Bc3 14.dc3 Rad8.

11.a3 Bd6 12.d4 (12.Bb5 Rab8=+) 12...Rad8 (12...Qd7 13.Ng5=+) 13.Nbd2 Nf6 (13...Qd7 14.Ne4=) 14.Qc2 a6 (14...Bd5 15.Nc4=) 15.e4 (15.Ba6 ba6 16.Qc6 Rb8=) 15...Bf5 16.Bd3 Bg6 (< 16...Ne4 17.Rae1 Bh2 18.Nh2 Nd4 19.Bd4 Rd4 20.Nhf3 Rd3 21.Qd3+-) 17.Rfe1 Bf4 18.Nb3 (18.d5 Ne5 19.Be5 Be5+=) 18...Bh5= (< 18...Ne4 19.Nc5 Nc5 20.Re7 Nd3 21.Re8 Re8 22.d5+/-) 19.Nfd2 Ng4 (19...Qd6 20.h3 Bg6 21.Nc4=) 20.g3 Bd2 21.Qd2 Bg6 (21...Qe6 22.d5 Nce5 23.Be2=) 22.Rac1 Nf6 23.Qc3 Nb8 (23...h6!?+=) 24.Qc7+/- Qc7 25.Rc7 Be4 26.Be4 Re4 27.Re4 Ne4 28.Rb7 Nd6 29.Rb4 Kf8 (29...Nd7 30.h3+/-) 30.d5 Nd7 31.Na5 Re8 32.Kf1 Rc8 (32...Nc5 33.Bd4 Nce4 34.Nc6+-) 33.Nc6+- f6 34.a4 (34.Bd4 Nb5+-) 34...Kf7 (34...Ke8 35.Ke2+/-) 35.Ba3 (35.Bd4 Ke8+-) 35...Nc5 (35...Ne5 36.Rd4 Ndc4 37.Bb4+/-) 36.Rb6 (36.Rh4 Ncb7+-) 36...Ndb7 37.Rb2 (37.Ke2 Ke8+-) 37...Re8 38.Nb8 Re4 (38...Kg8 39.Na6! Na6 40.Rb7+-) 39.Na6! (39...Rc4 40.a5+-) 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.Qc2 Bd6 12.a3 f6 13.Bd3 h6 14.Nh4 g5.

11.Nc3 Nc3 12.dc3 Rad8 13.Qa4 Bc5 14.Rad1 Bd5.

11.Nd4 Nd4 12.Bd4 Bd6 13.Nc3 c5 14.Nd5 Bd5 15.Bc3 Rad8 16.Bf3 Bc4 17.d3? (better is 17.Be2!? Be2 18.Qe2=+) 17...Bd3!–+ 18.Re1 (18.Qd3 Bh2) 18...Bc7 19.Qb3 b5 20.Bc6?? (better is 20.Rad1–+) 20…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.

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 (A).

11.a3 Ba5 12.Qb3 Qc5 13.Bc4 Rad8 14.d4 Qd6.

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.a3 Bd6 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.

11.a3 Bd6 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.

11.Nc3 Bc3 12.dc3 Nf4 13.Bb5 Rad8 14.Nd4 Nd4.

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).

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 (12...Be6 13.Qc2 g6 14.Nc3 Bc3 15.dc3) 13.Bc4 (13.Qb7?? Rab8 14.Be5 Re5–+ (worse 14...Ne5 15.Qa7 Ra8 16.Qd4–+)) 13...Rad8 14.Nc3 (14.Qb7?? Rb8 15.Qa6 Rb6–+) 14...Bc3 15.Bc3 b6 16.Rac1 Be6 17.Qa2 (17.d4 a6 18.a4 A) worse 18...Nc3 19.Qc3 (worse 19.Rc3 Na5 20.Qc2 Nc4–+) 19...Ne7 20.Be6 Qe6 21.Qc7+-; B) 18...Nf6=) 17...Nc3 (17...b5 18.Bb3=+) 18.Rc3= Na5 19.Be6 Re6 20.Nd4 Rh6 21.f4 Qe7?? (21...Qd7 22.Nf3=) 22.Nf3?? (better 22.Nf5 Qd7 23.Nh6 gh6 24.d4+-) 22...c5= 23.Ne5 Qe6 24.Qb2 Qe7 25.Nf3 Rhd6 26.d4 Rd5 27.Qc1 Nb7 28.Ne5 Qe8 (28...cd4? 29.Rc7 Qe6 30.Rb7+-) 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 (better 46.Rc7!? Ke7 47.Nc6 Kf6 48.Ne5 Rc7 49.Rc7+=) 46...Nd1–/+ 47.Rf8 Rf7 48.g5 (48.Rf7!? Kf7 49.Rc7 Ke8 50.Nc2=+) 48...hg5–/+ 49.fg5 Kg5 50.Rf7 Nc3 51.h4 Kh6 52.Re7 Rf6 53.Ne6? (53.Re8!? Kg7 54.Ra8–/+) 53...Nd5 (53...Rf3 54.Kh2 Re3 55.Nf8–+) 54.Rd7 (54.Re8!? Rf3 55.Kh2–+) 54...Rf3 (worse 54...Re6 55.Rd5 Rf6 56.a4 Rf3 57.Kg4 Re3 58.Rd6–/+; 54...Ne3?! 55.Ng5 Nf5 56.Kg4=+) 55.Kh2 Nf6 (55...Ne3?! 56.Ng5 Ng4 57.Kg2–/+) 56.Rd8 Ng4 (better 56...Kh5 57.Rh8 Kg4–+) 57.Kg1–/+ Nf6?? (better 57...Rg3 58.Kf1 g5 59.hg5 Kg6–/+) 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 (better 67.Rb6!? Nc4 68.Rb5 Na3+-) 67...Nb1+- 68.Ke4 Na3 69.Kd4 Kh5 70.e4 Kg5 71.e5 Kf5 (71...Nc4+-) 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 Kg4 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.

11.0-0 a6 A) 12.d3 A1) 12...Nf4 13.Nbd2 (13.Nc3 Ne2 14.Qe2 Bg4 15.Ne4 Ne5 16.Be5 Be5 17.Rab1 b5 18.h3=+) 13...Bg4 14.h3 Bh5 15.ef4 Qe2 16.g4 Bf4 17.gh5 Qd3 18.Qb3=; A2) 12...Bf5 13.Re1 (13.Nbd2 Nf4 14.Nc4 Rad8 15.Nd6 Ne2 16.Qe2 Qd6 17.e4 Bg6 18.Rad1=; 13.Qc2 Nf4 14.Nc3 Ne2 15.Ne2 Rad8 16.Qc3 f6 17.Ned4 Nd4 18.Nd4=+) 13...Nb6 14.e4 Bg4 15.Nbd2 Bf4 16.d4 Rad8 17.d5 Bd2 18.Qd2=; A3) 12...Nb6 13.Qc2 (13.Nc3 Bf5 14.Qc2 Rad8 15.Rfc1 f6 16.Qb3 Kh8 17.d4 Na5 18.Qd1=+; 13.Nbd2 Bf5 14.Qc2 Rad8 15.Rfb1 Qe6 16.Nb3 Qh6 17.h3 Bd7 18.Nc5=) 13...Bf5 14.Nbd2 Rad8 15.Rfb1 Qe6 16.Nb3 Qh6 17.h3 Bd7 18.Nc5=; A4) 12...Bg4 13.Re1 Rad8 14.Qb3 Nb6 15.Qc2 Bf5 16.e4 Bg4 17.Nbd2 Bf4 18.h3=; B) 12.Qc2 B1) 12...Be6 13.Nc3 (13.Bd3 h6 14.Nc3 Qd7 15.Rfc1 Rab8 16.Bc4 Nf6 17.Be6 Qe6 18.d3=) 13...h6 14.d3 Nf6 15.Rfc1 Rad8 16.Na4 Nd7 17.d4 Rb8 18.Nc5=; B2) 12...Nf6 13.Rc1 (13.Nc3 Bg4 14.d4 Qe6 15.Ng5 Bf5 16.Ne6 Bc2 17.Nc5 Bc5 18.dc5=; 13.d4 Bg4 14.Nc3 Rad8 15.Rfd1 Bh5 16.Rdc1 Bg6 17.Qb3 Qd7 18.Nh4=; 13.Rd1 Bg4 14.d4 Qe6 15.Bc4 Qd7 16.Nbd2 Bf5 17.Qc1 Qe7 18.Qc3=) 13...Bg4 14.d3 Rad8 15.Nbd2 Be6 16.Nc4 Bc4 17.Qc4 Nd5 18.Rc2=; B3) 12...Rb8 13.Nc3 (13.Bd3 h6 14.Nc3 Nf6 15.Bc4 Ne5 16.Ne5 Qe5 17.f4 Qf5 18.Bd3=) 13...Nf6 14.Ng5 g6 15.d3 Bf5 16.Nf3 h6 17.Rfc1 Qe6 18.h3=; B4) 12...Bg4 13.Nc3 Nf6 14.d4 Rad8 15.Rfd1 Bh5 16.Rab1 Rb8 17.Qb3 Bg4 18.Rbc1=; C) 12.d4 C1) 12...Bg4 13.Nc3 (13.Re1 Rad8 14.Qb3 Nb6 15.d5 Ne5 16.Nd4 Bc5 17.Bg4 Ng4 18.Nf5=; 13.Qb3 Be6 14.Re1 Nf4 15.Qc2 Ne2 16.Qe2 Rad8 17.e4 Bf4 18.Qc2=+; 13.Bd3 Rad8 14.Nc3 Nc3 15.Bc3 Qf6 16.a4 Nb4 17.Bb4 Bb4 18.Rb1=) 13...Qe6 14.Qb3 Nc3 15.Qc3 Ne7 16.h3 Nd5 17.Qb3 Bf5 18.Ng5+=; C2) 12...Be6 13.Bd3 (13.Nbd2 Rac8 14.Nc4 Qf6 15.Nd6 cd6 16.Rc1 Re7 17.Nd2 Rec7 18.Bd3=; 13.Qc2 Qf6 14.Bd3 Qh6 15.Nbd2 Rad8 16.Rfb1 Bg4 17.Bc1 Nb6 18.h3=; 13.Nc3 Nc3 14.Bc3 Bd5 15.Bd3 Rab8 16.Re1 Be6 17.Bb2 Bg4 18.e4=) 13...Rad8 14.Qc2 Kh8 15.Nbd2 h6 16.Rfc1 Bg4 17.Rab1 Kg8 18.h3=; C3) 12...Bf5 13.Nbd2 (13.Qb3 Be6 14.Qc2 h6 15.Nbd2 Rac8 16.Rfc1 Na7 17.Nb3 Rcd8 18.Nc5=; 13.Qd2 Nf4 14.Bc4 Ng6 15.Qc3 Rab8 16.Rc1 Nh4 17.Nbd2 Nf3 18.Nf3=) 13...Nf4 14.Bc4 Nd3 15.Qc2 Nb2 16.Qf5 Nc4 17.Nc4 b5 18.Nd6+=; C4) 12...Qf6 13.Bd3 (13.Nc3 Nc3 14.Bc3 Be6 15.e4 Bf4 16.Qe1 Bd7 17.d5 Ne5 18.Rb1=) 13...Bf5 14.Nc3 Bd3 15.Qd3 Nce7 16.Rfd1 Nc3 17.Bc3 Nd5 18.Rab1=; D) 12.Qb3 Be6 13.Re1 (13.Qc2 Rab8 14.Bd3 Nf6 15.Ng5 Bh2 16.Kh2 Ng4 17.Kg1 Qg5 18.f3=+; 13.Qd3 Qd7 14.Nc3 Nf6 15.Qc2 Rad8 16.d3 Bg4 17.Rab1 Qe6 18.h3=; 13.Qa4 Rab8 14.d3 b5 15.Qc2 Rb6 16.Nc3 Nf6 17.Rfc1 Ne5 18.Ne4=) 13...Rab8 14.Qc2 Qd7 15.d3 Rbd8 16.Nbd2 Re7 17.Ne4 Rde8 18.Nd6=.

11.0-0 Rb8 A) 12.Bb5 A1) 12...Bd7 13.d3 (13.Bd3 h6 14.Qc2 Bg4 15.Be2 Nf4 16.Bd1 Ng6 17.d3 Rbd8 18.Nc3=; 13.Qb3 Nf6 14.d4 a6 15.Bd3 Be6 16.Qc2 Bd5 17.Nc3 Bf3 18.gf3=; 13.d4 Qf6 14.Nc3 Nc3 15.Bc3 a6 16.Bd3 Bg4 17.h3 Bh5 18.e4=) 13...a6 14.Bc4 Nb6 15.Bb3 Na5 16.Bc2 Rbd8 17.Nbd2 f5 18.Re1=; A2) 12...a6 13.Bc4 (13.Qb3 ab5 14.Qd5 b4 15.d3 Bg4 16.Rc1 Rbd8 17.Qb5 Bf3 18.gf3–/+; 13.Bc6 bc6 14.Qc2 Bg4 15.d3 Bf3 16.gf3 Qh4 17.f4 Bf4 18.f3–+) 13...Be6 14.Qc2 Red8 15.d3 Re8 16.Nbd2 f5 17.e4 fe4 18.de4=; A3) 12...Bf5 13.Nc3 (13.d3 a6 14.Bc6 bc6 15.Qc2 Ne3 16.fe3 Qe3 17.Kh1 Bd3 18.Qc3–+) 13...Nc3 14.Bc3 Bd7 15.d4 a6 16.Be2 Na7 17.Qb3 Nb5 18.Bb4=; A4) 12...Bg4 13.h3 (13.d3 a6 14.Bc6 bc6 15.Qc2 Bf3 16.gf3 Qh4 17.f4 Bf4 18.f3–+; 13.Nc3 Nc3 14.Bc3 Ba3 15.Qa4 Bf3 16.gf3 Bc5 17.Bc6 bc6 18.Qg4=+) 13...Bd7 14.Qb3 Nf6 15.Nc3 a6 16.Be2 Be6 17.Qc2 Qd7 18.d3=; B) 12.d3 B1) 12...Bg4 13.Re1 Rbd8 14.Qb3 Nb6 15.Nbd2 Be6 16.Qc3 f5 17.Qc2 a6 18.d4=; B2) 12...Bf5 13.Re1 (13.Nbd2 Nf4 14.Nc4 Rbd8 15.Nd6 Ne2 16.Qe2 Qd6 17.e4 Bg4 18.Rfd1=+; 13.Qc2 Nf4 14.Nc3 Ne2 15.Ne2 Bg4 16.Ned4 Nd4 17.Nd4 Qe5 18.g3=+) 13...Nb6 14.Nc3 a6 15.e4 Bg4 16.d4 Rbd8 17.e5 Bc5 18.Ne4=; B3) 12...Bc5 13.d4 (13.Re1 Be6 14.Qc2 Bd6 15.Nc3 Nc3 16.Qc3 f6 17.d4 Bd5 18.Bd3=) 13...Bd6 14.Nc3 Be6 15.Ne4 Rbd8 16.Nd6 Rd6 17.Qc2 Bg4 18.Rfe1=; B4) 12...Nf4 13.Nbd2 (13.Nc3 Ne2 14.Qe2 Bg4 15.Nb5 Be5 16.d4 Bf6 17.h3 Bh5 18.g4=+) 13...Bg4 14.h3 Bh5 15.ef4 Qe2 16.g4 Bf4 17.gh5 Qd3 18.Qb3=; C) 12.Re1 C1) 12...a6 13.d3 (13.Qc2 Be6 14.Bd3 h6 15.Nc3 Ne5 16.Bh7 Kh8 17.Ne5 Be5 18.Nd5=) 13...Be6 14.Qc2 Rbd8 15.Nbd2 Nf6 16.Reb1 Bf5 17.Nc4 Rc8 18.e4=; C2) 12...Bf5 13.Qc1 (13.d3 Nb6 14.Qc2 Rbd8 15.e4 Bg4 16.Nbd2 Bf4 17.h3 Bd2 18.Nd2=) 13...Be6 14.e4 Nf4 15.Bb5 f6 16.Nc3 Ne5 17.Ne5 fe5 18.Be8=; C3) 12...Bg4 13.d3 (13.Qc2 Rbd8 14.h3 Be6 15.Bd3 h6 16.Nc3 Ne5 17.Be4 Nf3 18.Bf3=; 13.Qa4 Qe6 14.d3 Ne3 15.fe3 Qe3 16.Kf1 Bf3 17.gf3 Bc5 18.d4–+; 13.Nc3 Nc3 14.Bc3 Be6 15.Qc2 Bd5 16.Qb2 f6 17.d3 b5 18.e4=) 13...Rbd8 14.Qb3 Nb6 15.Nbd2 Be6 16.Qc2 Nd5 17.Ne4 Rc8 18.Nfg5=; C4) 12...Be6 13.Qc2 (13.e4 Nf4 14.Bb5 a6 15.Bc6 bc6 16.Qc2 Bg4 17.Re3 Bf3 18.Nc3–+; 13.Bb5 a6 14.Bc6 bc6 15.Qc2 Bg4 16.Nd4 Qe5 17.g3 c5 18.Nb3–/+; 13.d3 Rbd8 14.Qb3 Ne3 15.Qb7 Qd7 16.fe3 Rb8 17.Qa6 Rb2 18.d4–/+) 13...Qd7 14.e4 Nf4 15.Bb5 a6 16.Qc3 f6 17.Bc6 bc6 18.Re3=+; D) 12.Qc2 D1) 12...Be6 13.Bd3 (13.Nc3 Nc3 14.Qc3 f5 15.Rfc1 a6 16.Bc4 Bc4 17.Qc4 Qf7 18.d3=; 13.d3 f5 14.Re1 a6 15.Nc3 Rbd8 16.d4 Nc3 17.Qc3 Bd5 18.Bc4=; 13.Bb5 Bg4 14.Bc6 bc6 15.d3 Bf3 16.gf3 Qh4 17.f4 Bf4 18.f3–+) 13...h6 14.Nc3 Qd7 15.Ne4 Rbc8 16.Bb5 Bg4 17.Bc6 Qc6 18.Qc6=; D2) 12...a6 13.Nc3 (13.Bd3 h6 14.Nc3 Nf6 15.Bc4 Ne5 16.Ne5 Qe5 17.f4 Qf5 18.Bd3=) 13...Nf6 14.Ng5 g6 15.d3 Bf5 16.Nf3 Rbd8 17.Rfc1 h6 18.Qb3=; D3) 12...Nf6 13.Nc3 (13.Rc1 Bg4 14.Nc3 a6 15.d4 Qe6 16.Ng5 Qf5 17.Qf5 Bf5 18.Bc4=; 13.d4 Bg4 14.Nc3 a6 15.Rfd1 Rbd8 16.h3 Bh5 17.Qa4 Nd7 18.e4=; 13.d3 Be6 14.Nc3 a6 15.Rfc1 Bg4 16.d4 Qe6 17.Ng5 Qf5 18.Qf5=) 13...a6 14.Ng5 g6 15.d3 Bf5 16.Rfb1 h6 17.Nf3 Be6 18.Qa4=; D4) 12...Bg4 13.Nc3 Nc3 14.Qc3 Ne5 15.Ne5 Be2 16.Nc6 Qg5 17.Nb8 Bf1 18.Rf1=.

11.0-0 Bf5 12.Qb3 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=.

11.0-0 Bf5 12.Qb3 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=.

11.0-0 Bf5 12.Qb3 Nf4 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 (21...Qd8 22.Nd6 Qd6 23.Rc5=) 22.Nd6 cd6 (22...Qd6 23.Rc5 Be4 24.Ng5=) 23.Qb6+= Ne7 (23...Rbc8 24.Rc4=) 24.Nd2 Nd5 25.Qa5 Nf6 26.Nc4 (26.Bf3 Re7+=) 26...Be4 27.Qb4 (27.Qb6 Bc6+=) 27...Rbd8= 28.a4 Bc6 (28...Qe7 29.Nd2+=) 29.Qa5 Qe6 30.Ra3 (30.Nb6 Be4+=) 30...Nd5 31.Bf3 Rc8 32.h3 (32.e4 Qh6 33.Re1 Nf4+=) 32...Qg6 (32...b6 A) 33.Qa6? Ra8 34.Qa8 Ba8–+ (34...Ra8?! 35.Nb6 Nb6 36.Bc6–/+); B) 33.Nb6 Nb6 34.Bc6 Nc4 35.Rc4 Qc4 36.Be8 Qc1 37.Kh2 Re8+-; C) 33.Qd2 b5 34.ab5 ab5 35.Na5=) 33.Qd2 (33.Nd2 Kh8=) 33...Ne7 (33...b5 34.ab5 ab5 35.Na5=) 34.Bc6 (34.e4 f5 (34...Be4? 35.Be4 Qe4 36.Nd6+-) 35.Nb6 fe4+=) 34...Rc6 35.Na5 Rc1 36.Qc1 Rc8 37.Rc3 Rc3 38.Qc3 Qb1 39.Kh2 Qb6 40.Nc4 Qc7 41.Qb4 d5 (41...Nc8 42.d5+=) 42.Qd6 Qd6 43.Nd6 b6 44.Kg3 Kf8 45.Kf3 (45.Kf4 Nc6+=) 45...Nc6 46.Kf4 g6 47.Nc8 (47.Kg5 Nb8+=) 47...b5 48.ab5 ab5 49.Nb6 b4 (49...Ne7 50.Nd7 Ke8 51.Nf6 Kd8 52.Nh7=) 50.Nd5+- b3 51.Nc3 Ke7 (51...Nb4 52.g4+=) 52.Kf3 Na5 (52...b2 53.Ke2 f5 54.Kd2+-) 53.Nb1 Nc4 54.Ke2 (54.e4 f5+-) 54...f5 55.f3 (55.Kd3 Nb2 56.Kc3 Nd1 57.Kb3 Nf2 58.Nc3+-) 55...Ke6 (55...g5!?+-) 56.e4+- b2 (56...f4 57.Kd3 Nb2 58.Kc3 Nd1 59.Kb3+-) 57.Kd3 Nd6 (57...Na5 58.Kc3+-) 58.Nd2 Nb5 59.d5 Kf6 (59...Kd7 60.Kc2+-) 60.Kc2 Ke5 (60...Nd4 61.Kb2 Ne2 62.h4+-) 61.Kb2 Kd4 62.Kc2 Nd6 63.Kd1 (63.g4 fe4 64.fe4 Nf7+-) 63...h6 64.Ke2 Nf7 65.Nb3 (better 65.h4!? Ne5+-; better 65.g3!? Nd6+-) 65...Kc3 66.Nc5 fe4 67.Ne6 Nd6 (67...ef3 68.Kf3 (68.gf3?! Kc4+-) 68...Ne5 69.Ke4+-) 68.fe4 Ne4 69.Kf3 (69.Ke3 Nd6+-) 69...Nf6 70.d6 Nd7 71.Ke4 (71.Nf4 g5 72.Ne6 Kd3+-) 71...Kc4 72.Nf4 Kc5 73.Ng6 Kd6 74.Kf5 Nb6 (74...Kc5 75.Ne7+-) 75.Nf4 1–0. Morley,Paul (2230) – Liso,H. Ricardo, WC17/WS44 ICCF, 2009.

11.0-0 Bf5 12.Bb5 A) 12...Bd7 13.d4 (13.Qb3 Nb6 14.Rc1 Rad8 15.Qc3 Qf8 16.d4 Nd4 17.Nd4 c5 18.Qa5=; 13.d3 a6 14.Bc4 Nb6 15.Bb3 Na5 16.Bc2 Bg4 17.Nbd2 Nc6 18.Qb1=) 13...a6 14.Bd3 Nf6 15.Nbd2 Rad8 16.Nc4 Bg4 17.Rb1 Qe6 18.Nd6=; B) 12...Rab8 13.Nc3 (13.d3 a6 14.Bc6 bc6 15.Qc2 Ne3 16.fe3 Qe3 17.Kh1 Bd3 18.Qc3–+) 13...Nc3 14.Bc3 Bd7 15.d4 a6 16.Be2 Na7 17.Qb3 Nb5 18.Bb4=.

11.0-0 Bf5 12.Re1 a6 13.d3 Nb6 14.e4 Bg4 15.Nbd2 Bf4 16.d4 Rad8 17.d5 Bd2 18.Qd2=.

11.0-0 Bf5 12.Re1 Nb6 13.d4 (13.Nc3 Rad8 14.d3 a6 15.Qc2 Qe6 16.Rab1 Re7 17.Nh4 Qh6 18.g3=; 13.d3 Rad8 14.Qc2 a6 15.e4 Bg4 16.Nbd2 Bf4 17.h3 Bd2 18.Nd2=; 13.Bb5 Bd7 14.d4 Na5 15.Bd7 Qd7 16.e4 Nac4 17.Qc2 Rad8 18.Nbd2=) 13...Na5 14.Nbd2 Qd7 15.Bc3 Nc6 16.Nc4 Rad8 17.Nd6 Qd6 18.Bb4=.

11.0-0 Bf5 12.Re1 Rab8 13.d3 (13.Bc4 Nb6 14.Bb5 a6 15.Bc6 bc6 16.Nd4 Qh4 17.g3 Qf6 18.Nf5=; 13.Qc1 Be6 14.e4 Nf4 15.Bb5 f6 16.Nc3 Ne5 17.Ne5 fe5 18.Be8=) 13...Nb6 14.Nc3 a6 15.e4 Bg4 16.d4 Rbd8 17.e5 Bc5 18.Ne4=.

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.

11.0-0 Bg4 A) 12.Qb3 A1) 12...Qd7 13.Nc3 (13.Re1 Nb6 14.d3 Rad8 15.Nbd2 Be6 16.Qc3 f5 17.Qc2 Bd5 18.e4=; 13.Rc1 Nf4 14.Bc4 Nh3 15.Kf1 Bf3 16.gf3 Bh2 17.f4 Ng1 18.Bd5–/+) 13...Be6 14.Ne4 Nf4 15.Bc4 Bc4 16.Qc4 Nd3 17.Nd6 Qd6 18.Qc3=; A2) 12...Nb6 13.d4 Qe6 14.Qe6 Be6 15.Nc3 a6 16.Ne4 Bf8 17.Nc5 Bc5 18.dc5=; B) 12.h3 B1) 12...Be6 13.Bd3 (13.Qc2 Rad8 14.Bd3 h6 15.Nc3 Ne5 16.Be4 Nf3 17.Bf3 Qg5 18.Nd5=; 13.Bb5 Bd7 14.Qb3 Nb6 15.Nc3 Na5 16.Qc2 Bb5 17.Nb5 Nac4 18.Rfb1=) 13...Nf6 14.Qa4 Bd5 15.Qh4 Bf3 16.Bf6 Qf6 17.Qf6 gf6 18.gf3=; B2) 12...Bd7 13.Qb3 (13.Qc2 Rad8 14.Nc3 Nc3 15.Qc3 Qf8 16.Bc4 Bf5 17.d3 a6 18.e4=; 13.Qc1 a6 14.Nc3 Nf6 15.d4 Bf5 16.d5 Ne5 17.Nd4 Bd3 18.Bd3=) 13...Nb6 14.d4 Be6 15.Qc2 Rad8 16.Bd3 Bd5 17.Nbd2 f5 18.Bf5+-; B3) 12...Bc8 13.Qc2 (13.Qb3 Nb6 14.Qc3 f6 15.d4 Be6 16.Qc2 Qf7 17.Nbd2 Rad8 18.Rfc1=) 13...a6 14.Nc3 Nf6 15.Ng5 g6 16.d3 Bf5 17.Rfc1 h6 18.Nf3=; B4) 12...Bf5 13.Qb3 (13.Bb5 Rab8 14.Nc3 Nc3 15.Bc3 Bd7 16.Qb3 a6 17.Bc4 b5 18.Bd5=+) 13...Nb6 14.Qc3 Qf8 15.d4 Rad8 16.Rd1 Be4 17.Ng5 Bg6 18.Bf3=; C) 12.Re1 C1) 12...Rad8 13.Qb3 (13.d3 Be6 14.Qb3 Ne3 15.Qb7 Qd7 16.fe3 Rb8 17.Qa6 Rb2 18.d4–/+; 13.Bb5 Qd7 14.e4 Nf4 15.Qb3 Bh5 16.h3 Re6 17.Nh4 Qe7 18.Nf5=+; 13.d4 Qe6 14.Qb3 Bf5 15.Nc3 Nc3 16.Qc3 Qh6 17.Qb3 Be4 18.g3=+) 13...Nb6 14.Qc3 f6 15.d4 Qe6 16.Nbd2 Na4 17.Qc2 Nb2 18.Qb2=; C2) 12...a6 13.Qc2 (13.d3 Be6 14.Qc2 Rad8 15.Nbd2 Nf6 16.Reb1 Bf5 17.Nc4 Rc8 18.e4=; 13.d4 Rad8 14.Qb3 Nb6 15.d5 Ne5 16.Nd4 Bc5 17.Bg4 Ng4 18.Nf5=; 13.Qb3 Nb6 14.d4 Be6 15.Qc2 Nd5 16.Bd3 Nf6 17.Ng5 Bh2 18.Kh2=) 13...Rad8 14.h3 Bd7 15.Nc3 Nb6 16.d4 Qe6 17.Bd3 Qh6 18.Ne4+=; C3) 12...Qe6 13.Nc3 (13.d3 Qg6 14.Nbd2 Bh3 15.Nh4 Qh6 16.Nhf3 Be6 17.Ne4 Be7 18.Qc2=; 13.Qb3 Nb6 14.Qe6 Be6 15.Bb5 Bd5 16.Nd4 Nd4 17.Bd4 c6 18.Nc3=+; 13.Bb5 Qg6 14.Bc6 bc6 15.d4 Rab8 16.Bc3 Qh6 17.h4 Rb1 18.Qb1–+) 13...Nc3 14.Bc3 Qh6 15.h3 Be6 16.Qc2 a6 17.Reb1 Rab8 18.Rb2=; C4) 12...Rab8 13.d3 (13.Qc2 Rbd8 14.h3 Be6 15.Bd3 h6 16.Nc3 Ne5 17.Be4 Nf3 18.Bf3=; 13.Nc3 Nc3 14.Bc3 a6 15.Qb3 Be6 16.Qb2 f5 17.d3 b5 18.Rec1=; 13.Qc1 Nf6 14.d4 a6 15.Nc3 Qd7 16.h3 Bf5 17.Rd1 Na5 18.Nd2=+) 13...Rbd8 14.Qb3 Nb6 15.Nbd2 Be6 16.Qc3 f5 17.Qc2 a6 18.d4=; D) 12.Bb5 D1) 12...Reb8 13.d4 (13.h3 Bh5 14.d4 a6 15.Bc4 Nf6 16.Nc3 Rd8 17.Be2 Re8 18.Qb3=) 13...a6 14.Bd3 Rd8 15.Nc3 Nc3 16.Bc3 Ba3 17.Qb1 Bf3 18.gf3=; D2) 12...Rab8 13.d4 (13.h3 Bd7 14.Qb3 Nf6 15.Nc3 a6 16.Be2 Be6 17.Qc2 Qd7 18.d3=; 13.d3 a6 14.Bc6 bc6 15.Qc2 Bf3 16.gf3 Qh4 17.f4 Bf4 18.f3–+; 13.Nc3 Nc3 14.Bc3 Ba3 15.Qa4 Bf3 16.gf3 Bc5 17.Qg4 g6 18.d4=) 13...a6 14.Bd3 Rbd8 15.Nc3 Nc3 16.Bc3 Qf6 17.a4 Nb4 18.Bb4=; D3) 12...Qd7 13.d4 (13.h3 Bh5 14.d3 a6 15.Bc6 Qc6 16.Nbd2 Qd7 17.Qb3 b5 18.a4=+; 13.Nc3 a6 14.Be2 Nc3 15.Bc3 Qe6 16.Qc2 Qh6 17.h3 Be6 18.Rfb1=; 13.d3 a6 14.Bc4 Nb6 15.Nbd2 Nc4 16.Nc4 Bf8 17.Rc1 Rad8 18.d4=+) 13...Rad8 14.Bd3 Nce7 15.Nbd2 Ng6 16.Nc4 Nh4 17.Be2 Qe7 18.Nd6=; D4) 12...Qe6 13.Bc6 (13.d3 Bf3 14.Qf3 Ne5 15.Be5 Qe5 16.g3 Qa1 17.Be8 Nf6 18.Bb5=+; 13.h3 Bf3 14.Qf3 Ne5 15.Qh5 c6 16.Be2 Nf6 17.Qh4 b5 18.f4=+; 13.Re1 Qg6 14.Bc6 bc6 15.d4 Rab8 16.Bc3 Qh6 17.h4 Rb1 18.Qb1–+) 13...bc6 14.h3 Rab8 15.Bc3 Bh5 16.Nd4 Qe5 17.f4 Qd4 18.Bd4=.

11.Qc2 Bg4 12.h3 Bh5 13.Nc3 Nf6 (13...Bf3 14.gf3 Nc3 15.Bc3=) 14.Nb5= a6 (14...Ne4 15.Nd6 cd6 16.d3=) 15.Nd6 cd6 16.0-0 (16.Qf5 Bg6 17.Bf6 Bf5 18.Be7 Re7=) 16...Ne5 17.Qd1 Rac8 18.d3 Bf3 (18...Nd5 19.d4 Bf3 20.Bf3 (worse 20.de5 Be2 21.Qe2 de5–/+) 20...Nf3 21.Qf3=) 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 (worse 27.Ba6 Qc6 28.f4 Ned7 29.Bb5 Qb5 30.Bf6 Nf6–/+) 27...Qb7 28.fe5 de5 29.Be5 The passed pawn on d3 will quickly become a dangerous weapon 29...Nd7 30.Ba1 Qd5 31.Qb2 Do you see the mate threat? 31...f6 32.Qc3 (32.Qc2 a5=) 32...Nc5=+ 33.d4 Ne4 34.Qc8 Kh7 35.Bb2 (35.Qa6 Qg5 36.Qe6 Qe3 37.Kh2 Qf4 38.Kg1 Qf2 39.Kh2 Nd2–/+) 35...Qg5 36.Bc1 Qg6 37.g4 h5 38.Kh2 h4 39.Qe6 Ng3 The mate threat is Qc2 (39...Ng3 40.e4 Ne4–+) 0–1. Lee,Shuman – Morihama,Nicolau, IECG, 1999.

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.

11.d4 a6 12.Nc3 h6 13.Rc1 Nc3 14.Bc3 Bf5 (14...Qd5 15.Ba1=) 15.Qb3+= Be4 16.Bc4 (worse 16.Qb7 Nd4 17.Qb2 Rb8-/+) 16...Qd7 17.Nd2 (17.Qb7?? Reb8 18.Qa8 Ra8-+) 17...Bg6 18.Be2 (18.d5!? Ne5 19.Be5 (19.Qb7?? Reb8 20.Ba6 Rb7 21.Bb7 Ra2-+) 19...Be5 20.Qb7+=) 18...Bd4= 19.Bf3 Bc3 20.Qc3 Rad8 (20...Rab8 21.Rfd1=) 21.Rfd1 (21.Nb3 Qd3=) 21...Qe6 22.Nb3 Rd1 23.Rd1 a5 (23...Bf5 24.Rc1=) 24.Nc5 (24.Na5!? Na5 25.Qa5=) 24...Qa2=+ 25.Nb7 Ne5 26.Bc6 (26.Bd5 Qc2 27.Qc2 Bc2=+) 26...Qe2 (26...Nc6 27.Qc6 Re7 28.h3=+) 27.Re1= Qg4?? (better 27...Qd3 28.Qd3 Nd3 29.Be8 Ne1 30.Na5 Kf8=) 28.f3 (28.h3 Qg5 29.f4 Qg3 30.fe5 Re5 31.Na5 Rh5+/-) 28...Nf3 (28...Qg5 29.f4 (29.Be8 Nf3 30.Kf2 Ne1 31.Ke1 Qg2 32.Na5 Qg1 33.Ke2 Qh2 34.Kf1 Qh1 35.Kf2 Qh4 36.Kg1 c5=+) 29...Qf6 30.fe5 Re5 31.Bf3+-) 29.Bf3 Qg5 30.e4 (30.Na5 Be4 31.Be4 Re4 32.Qc7 Re3+-) 30...a4 (30...Re5 31.Qc7 a4 32.Nd6+-) 31.Qc6 (31.Nc5 Qe5 32.Na4 Qc3 33.Nc3 Re5+-) 31...Ra8 (31...Re5 32.Qa4 Qd2 33.Re2+-) 32.Nc5 (32.Qc7?! a3 33.e5 Qd2+=) 32...Qd2?? (32...Qd8+-) 33.Qa8 Kh7 Threatening mate: Qxe1 34.Rd1 (better 34.Kf1 Qd6 35.Qd5 Qh2+-) 34...Qe3 35.Kh1 Qc5 36.Qa4 (36.Qa4 c6 37.Qd4+-) 1-0. Grosmelder,Karl - Efimova,Nadezhda, 1999.

11.d4 Qe7 12.Nc3 Nf4?? (better 12...Nb6!?=) 13.Bb5?? (better 13.ef4 Qb4 14.Rb1 Nd4 15.Bd3+-) 13...Ng6 14.Nd5 Qd6 15.Nf6 Qf6 16.Qc1 Qe6? (16...a6 17.d5 Qd6 18.Qc3+-) 17.Rd1 (better 17.d5 Qd5 18.Qc3+-) 17...Qd6? (better 17...Qd5 18.Bc4 Qh5+/-) 18.d5+- (18.d5 Qb4 19.Bd3+- (19.dc6?! Qb5 20.Qc3 f6+/-)) 1-0. carlos78 (2200) - xmodey (2190), Rated Blitz game, lichess.org, 2015.

11.d4 Bf5 12.a3 Na5 13.Nbd2 c5 14.Nb3 Rc8 15.Na5 (15.Rc1 Qb6 16.Na5 A) 16...Qb2? 17.Nc4 (17.Rc5? Rc5 18.dc5 Nc3-+; 17.dc5 Nc3 18.Rc3 Bc3=+) 17...Qa2 18.Nd6 cd4 19.Ne8 (19.Rc8 Rc8 20.Nd4 Nc3=; 19.Nf5?! Rc1 20.Qc1 Qe2=) 19...Re8 20.Bc4 Qa3 21.Bd5 de3 22.fe3+-; B) 16...Qa5=) 15...Qa5=+ 16.Qb3 Nb6 (16...Be6 17.Rae1=+ (17.Qb7? Rb8 18.Qa6 Qa6 19.Ba6 Rb2-+)) 17.Rac1 c4 (17...Be6 18.Bc3 Qa4=) 18.Qc3 (better 18.Bc4!? Nc4 19.Rc4 Rc4 20.Qc4+=) 18...Qc3=+ 19.Bc3 Na4 20.Bd1 Nc3 21.Rc3 b5 22.Bc2 Bd7 23.Nd2 (23.e4!?=+) 23...Bd8-/+ 24.Bb1 Ba5 25.Rfc1 (better 25.Rc2!?-/+) 25...Bc3-+ 26.Rc3 a5 27.Rc1 c3 (27...c3 28.Ne4 b4 29.ab4 ab4-+) 0-1. Slobodjanac,Sinisa (1860) - Zufic,M (2380), Hum na Sutli CRO, 2019.

11.d4 Bf5 12.Nc3 Ncb4 13.Qd2 Nc3 14.Bc3 Nd5 15.Rfc1 Nc3 (15...Be4 16.h3=) 16.Rc3=. 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=+ -0.47) 17...Be4 (17...c6 18.Qf4 Be4=+ -0.59) 18.Bc4 (18.Qf4 c6=+ -0.59) 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 (27.Qg4 Rd3 28.Rd3 Bf6+-) 27...Qe6 (27...Bg5 28.d5 Qd8 29.h3+/-) 28.Kg1 (28.gh4?! Qh3 29.Qg2 Rd3 30.Qh3 Rh3=) 28...Bg5 (28...Rc7 29.d5 Rd3 30.Rd3+-) 29.d5! Qg4 (29...Qd5 30.Qf5) 30.Rf1 Rf8 31.Nc1 Qd7 32.Ba3 (32.Qf5 Qf5 33.Rf5 Re1 34.Rf1 Be3 35.Kg2 Rf1 36.Kf1 Rd8+/-) 32...Re5 33.Qf3 (33.Bf8? Be3 34.Ba3 Bf2 35.Kf2 Qd5-+) 33...Rd8 34.d6 Be3 35.Kh1 Bc5 36.Bb2 (better 36.Bc5!? Rc5 37.Nb3+/-) 36...Re3= 37.Qd5 Re6 (37...Rf8 38.Be5 Re8 39.Bf4+/-) 38.Bc4= Qd6 (38...Rf8!?=) 39.Qd6+/- Red6 (better 39...Rdd6!? 40.Be6 fe6+/-) 40.Rf7+- Rd1 41.Kg2 R8d2 (41...b5 42.Be6 (42.Rg7?! Kf8 43.Rg8 Ke7 44.Rd8 Kd8+=) 42...R1d2 43.Kh3+-) 42.Kh3 h5? (42...Rc2 43.Rd7 Rc4 44.Rd1 Rc2 45.Rd8 Kf7+-) 43.Rg7 (43.Ra7?! Kh7 44.Bc3 Rd7 45.Rd7 Rd7+-) 43...Kf8 (43...Kh8 44.Rd7 Rb2 45.Rd1+-) 44.Bf6 Ke8 45.Bf7 Kf8 (45...Kd7 46.Bh5 Ke6 47.Bg5+-) 46.Be6 Ke8 47.Ra7 1-0. Lapshun,Yury (2440) - Wang,David (2110), Canadian Open, Kapuskasing CAN, 2004.

11.d4 Bf5 12.0-0 Be4 13.Nbd2 Na5 (13...Bg6!?=) 14.Ne4+/- Re4 15.Qc2 Re6 16.Nd2 (16.Rab1 h6+/-) 16...b6 17.Nc4 Nc4 18.Bc4 Re8 (18...Re7 19.Qf5 Rd7 20.Rab1+/-) 19.e4 Nf4 20.e5 Bg5 21.Qf5 Ne6 (21...Rf8 22.Rab1+/-) 22.f4 (22.d5 g6 23.Qf3 Ng7+-) 22...Bh6+/- 23.d5 g6?? (better 23...Nc5+/-) 24.Qh3+- (24.de6?! gf5 25.ef7 Kf8 26.fe8R Qe8=) 24...Nf4 (24...Qe7 25.de6 Qc5 26.Rf2 Qc4 27.ef7 Qf7 28.Qh6+-) 25.Qh6 (25.Qh6 Ne2 26.Be2 Qd5 27.e6 f6 28.Rf6 Re7 29.Rg6 hg6 30.Qh8) 1-0. Knight286 (2210) - DrEvil2000 (2150), Rated Blitz game, lichess.org, 2016.

11.d4 Bg4 12.0-0 Qe7 13.Re1 Rad8 14.Nbd2 Ne3 15.fe3 Qe3 16.Kf1 Bf3 17.Nf3 Nd4 18.Nd4 Bd4 19.Bd4 Rd4 20.Qc2 Rde4 21.Ra2 Qb6 22.g3 Qa5 23.Qd2 Qf5 24.Kg2 Re3 25.Raa1 Qe4 26.Kg1 Re2 27.Re2 Qe2 28.Qe2 Re2 29.Rd1 g6 30.Rd7 Rc2 31.h4 h5 32.Kf1 a5 33.Ke1 (33.Rd5 b6 34.Rd3 c5-+) 33...b5 (better 33...Rc3 34.Kf2-+) 34.Kd1 (34.Rd5 c5-+) 34...Rc3 35.Kd2 Ra3 36.Rc7 Rg3 37.Rc5 Rg4 38.Rb5 Rh4 (better 38...a4 39.Rd5-+) 39.Ra5 Re4 40.Kd3 Re6 (40...f5 41.Ra7-+) 41.Ra8 (41.Ra4 g5-+) 41...Kg7 42.Ra7 h4 43.Rb7 (43.Ra5 f5-+) 43...h3 44.Rb4 (44.Rb5-+) 44...g5 45.Rg4 (45.Rb1 g4 46.Rh1-+) 45...h2 46.Rg5 Kh6 47.Rg3 h1Q 48.Re3 (48.Kc4 Qh4 49.Kb3 Qg3 50.Kc4 Qc7 51.Kd5 Qd7 52.Kc4 Rc6 53.Kb4 Qb7 54.Ka4 Ra6) 48...Qd5 (48...Qd1 49.Kc3 Re3 50.Kc4 Qc2 51.Kd4 Rd3 52.Ke5 Kg5 53.Ke4 Qe2) 49.Ke2 (49.Kc2 Re3 50.Kc1 Re2 51.Kb1 Qd1) 49...Qc4 50.Kf2 (50.Kd2 Qd4 51.Rd3 Qb2 52.Kd1 Qe2 53.Kc1 Rc6 54.Rc3 Rc3 55.Kb1 Qc2 56.Ka1 Ra3) 50...Qf4 51.Rf3 Qd2 (51...Qh2 52.Kf1 Qe2 53.Kg1 Rg6 54.Rg3 Rg3 55.Kh1 Qh5) 52.Kg3 (52.Kg1 Re1 53.Rf1 Qe3 54.Kg2 Re2 55.Kh1 Qh3 56.Kg1 Qg2) 52...Rg6 53.Kh3 Qg2 54.Kh4 Rg4 (54...Qg4) 0-1. sutko6 (2195) - agnivo (2290), Rated Blitz game, lichess.org, 2020.

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 a5 11.a3 Bc5 12.Nc3 Bb6 (12...Be6 13.d4 Bd6 14.e4 Nc3 15.Bc3+=) 13.d3 Bg6 (13...Nc3 14.Bc3 Qd6 15.Qc2=) 14.Rc1 (14.Qb3 Ne3 15.fe3 Re3+=) 14...Qd7 (14...Ne3 15.fe3 Be3 16.Kh1 Bc1 17.Bc1=+) 15.Na4 (15.Nd5 Qd5 16.Nh4 Qb5+=) 15...Rad8 (15...Ne3!? 16.fe3 Be3 17.Rf2 Qe7=+) 16.Nc5 (16.Nb6 Nb6 17.Qc2 Bd3=) 16...Bc5= 17.Rc5 Nb6 (17...Qe6 18.Rc2=) 18.d4 Be4 19.Bb5 Qg4 20.Be2 (20.Rg5 Bf3 21.Rg4 Bd1 22.Rd1 Ne5 23.Be8 Ng4+=) 20...Re6?? (better 20...Qg6=) 21.Rg5+- (21.Rg5 Qf5 22.Rf5 Bf5 23.Bd3 Bd3 24.Qd3+-) 1-0. norba94 (2470) - FabianM (2430), Rated Blitz game, lichess.org, 2016.

10.0-0 Nb6 11.Nc3 Bd3 12.a3 Bc5 13.Rc1 (13.Ne1 Be2 14.Qe2 Bd6=) 13...Nc4=+ 14.Na4 (14.Qb3 Rb8=+) 14...Nb2-/+ 15.Nb2 Be2 16.Qe2 Ba3 17.Rb1 a5 18.Na4 Bb4 19.Rfc1 Rb8 20.Qc4 Bd6 (worse 20...Bd2 21.Rd1 Ne5 22.Ne5 Re5 23.Qa2+=) 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 (30.Ra5? b6 31.Ra6 Nb4-+) 30...Nb4 31.Qh3 (31.Ra5? b6 32.Ra4 g5-+ (32...bc5?! 33.dc5 Bc5 34.Rc5=)) 31...Qf6 32.Ncb3 (32.Ra5? b6 33.Ra4 bc5 34.dc5 Qb2-+) 32...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 (47.Na4 Re4 Deflection) 47...a3 48.Ke2 Re8 49.Ra1 a2! 50.Kd2 (50.Na2 Re4 Deflection) 50...c5! 51.Kc1 (51.dc5 bc5 Passed pawn) 51...Rf8 52.Kb2 (52.Na2?? Rf1 53.Kb2 Nd3 54.Kb3 Ra1-+) 52...Rf3 53.Na2 Nd3 (53...Re3?! 54.Nb4 Re4 55.Ra8 Kg7 56.Ra7 cb4 57.Rc7 Kf8 58.Rc4=+) 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 White fights for the Initiative (12.Bb5 Qe6 (12...Bd7 13.Qb3 Nb6 14.Bd3 h6 15.a3= 0.00; 12...Bg4 13.a3 Bd6 14.Re1 a6 15.Bc6= 0.22; 12...Bd6 13.Nc3 Nc3 14.Bc3 Be4 15.Bd3= -0.06) 13.Qa4 Rb8 14.Rc1 Bd6 15.Nbd2= -0.09; 12.Qb3 Be6 (12...Nf4 13.Bb5 Na5 14.Qa4 c6 15.ef4= 0.00; 12...Rcd8 13.a3 Na5 14.Qa4 Bd7 15.Qc2= 0.13) 13.Qc2 Bd6 14.a3 Qf6 15.Rc1= 0.00; 12.Qa4 Rcd8 (12...Be4 13.a3 Nb6 14.Qd1 Bd6 15.Nc3= -0.03; 12...Nb6; 12...Be6) 13.a3 Nb6 14.Qb3 Bd6 15.Rc1=+ -0.31) 12...Ba5 (12...Bd6 13.Qb3 Qe6 14.Nbd2 Na5 15.Qa4= 0.00) 13.Qb3 Nb6? (better 13...Qd6= 14.Bc4 Rcd8 15.Nc3= 0.00) 14.d5+- Nd8 (14...Nd5 15.Qd5 Bg4 16.Nc3+-) 15.Qb5 Bb1 (15...Be4 16.Qa5 Bd5 17.Nc3+- (17.Qa7 Ra8 18.Qa8 Na8=+)) 16.Rab1 (16.Qa5?! Be4 17.Rfd1 Qd6=) 16...f5 (16...Qe4 17.Qa5 Qd5 18.Bb5+- (18.Qa7?! Ra8 19.Qa8 Na8=)) 17.Qa5 f4 (17...Qd6 18.Rfd1+- (18.Qa7?! Ra8 19.Qa8 Na8+=)) 18.ef4 Qe4 (18...Qf7 19.Rfe1 Qf4 20.Bd3+-) 19.Bb5 (19.Bb5 Rf8 20.Be5 (20.Qa7?! Ra8 21.Qa8 Na8+/-) 20...Qd5 21.Rfd1+- (21.Qa7?! Ra8 22.Qa8 Na8+/-)) 1-0. Zschalich,Arndt - Zumpe,Guenter, corr DDR-ch M790, 1985.

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.

10.0-0 Bg6 11.a3 Bd6 12.Qb3 (12.Nc3 Nc3 13.Bc3 Rb8=) 12...Rb8 (12...Na5 13.Qd1=+) 13.Nc3= Nf6 14.Bb5 (14.Nb5 Be7=) 14...a6=+ 15.Be2 b5 16.Rac1 (16.d4 Na5 17.Qa2 Bf5=+) 16...Na5 (16...b4!? 17.Nb5 Na5-+ (17...ab5?! 18.Rc6 Be4 19.Ra6=+)) 17.Qa2=+ c5 18.d3 Bf5 19.Rfd1 Be6 Black intends c4 20.Qb1 Bb3 21.Re1 c4 22.dc4 bc4 (22...Bc4 23.Nd4=+) 23.Bd1 (23.Qf5 Nc6=) 23...Qc7 (23...Ba3 24.Ba3 Bd1 25.Qf5 Bf3 26.Qf3-/+) 24.Bb3 (24.Bc2 Bc2 25.Qc2 Nb3=+) 24...Nb3 (worse 24...cb3 25.Nd5 Nd5 26.Rc7 Nc7 27.Qd3+/-) 25.Rcd1 Nc5 26.Qc2 (better 26.Re2!?-/+) 26...Nd3-+ 27.Rd3 (27.Na4 Ng4 28.Re2 Bh2 29.Kf1 Rb3-+) 27...cd3 28.Qd3? (28.Qd2-+) 28...Rb2 29.Nd5 (29.Ne2 a5-+) 29...Nd5 30.Qd5 0-1. norba94 (2390) - Peaudepailles (2690), Rated Blitz game, lichess.org, 2016.

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.Qb3 Bd6?? (better 10...Na5 11.Qd1 Bd6-/+) 11.Qd5+- Nb4 (11...Be6 12.Qg5 Qg5 13.Ng5 Bf5+-) 12.Qb3 (better 12.Qf5 g6 13.Qa5 Nc2 14.Kd1 Na1 15.Bc4+-) 12...Nc2 13.Kd1 Nb4? (better 13...Na1 14.Ba1 c6+-) 14.d4 (better 14.Nd4 Bg6 15.a3+-) 14...Bc2+= 15.Kd2?? (better 15.Qc2 Nc2 16.Kc2+=) 15...Bb3-+ 16.ab3 Nc6 17.Nc3 Qe7 18.h4 Qf6 19.h5 Qf5 20.h6 Nb4 21.Ra4 (21.Rac1 g6 22.Nb5-+) 21...Qc2 22.Ke1 Qb2 23.Nd1 Nc2 (better 23...Qb3 24.Ra5 Nd3 25.Kf1-+) 24.Kf1 Qc1 (24...Qb3!? 25.Rc4-+) 25.Rc4 (25.hg7 Kg7 26.g3 a5-+) 25...a5 (25...b5 26.Rc3 Bb4 27.Rd3-+) 26.hg7 (26.Ne1 Ne3! 27.Ne3 Qa1-+) 26...a4 (better 26...b5 27.Rc3 Bb4 28.Rc2 Qc2-+) 27.Bd3 (27.ba4 Qb1 28.Rh5 Na3-+) 27...Re3 (27...Qd1 28.Ne1 Qe1) 28.Bc2 ab3 (better 28...Rd3 29.Ke2 b5 30.Bd3 bc4-+) 29.fe3 (better 29.Bh7 Kg7 30.Rc1+-) 29...bc2-+ 30.Kf2 cd1Q 31.Rc1 Qd2 (31...Ra2 32.Rc2 Rc2 33.Nd2 Rd2) 32.Nd2+- Ra2 33.Ke2 Kg7 34.Kd3 Rd2 (34...f5+-) 35.Kd2 Bb4 36.Ke2 Bd2 (36...Bd2 37.Kd2 c6+-). James_Flynn (2065) - Lutter97 (2110), Rated Bullet game, lichess.org.

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 (16.Qb7 Reb8 17.Nh4 Qh6 18.Qc6 Bh2 19.Kh2 Qc6 20.Nf5 Qc3-/+) 16...Ne7 17.Qd1 (better 17.Nh4!? Qh6 18.g3=+) 17...Be4-/+ 18.Bc4 b5 19.Bb3 Rad8 20.Qd4?? (better 20.Kh1-+) 20…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.dc3 Bd6 13.Qb3 Re6 14.Rfd1 (14.Qb7?? Na5 15.Qa8 Qa8-+) 14...Be4 15.c4 (15.Qb7?? Nd4 16.Nd4 Bb7 17.Ne6 fe6-+) 15...Qe7 16.Rac1 (16.Nd2 Qh4 17.h3 Rg6 18.Ne4 Qe4=) 16...Rg6 17.g3 (17.Qb7 Rb8 18.Qb8 Nb8-+) 17...b6 18.Nd2 Na5 19.Qc3 f5 20.Ne4 fe4 (worse 20...Qe4 21.c5 Bc5 22.Rd7+/-) 21.Qd4 Rf8 22.Bf1 (22.Qd5 Kh8=) 22...Nc6 (better 22...Qf7!? 23.Qd5 Re6=) 23.Qd5+= Kh8 24.Bg2 The isolani on e4 becomes a target (24.Qc6?? Bg3 25.Qg6 Bf2 (25...hg6? 26.hg3 Rd8 27.Rd5+-) 26.Kh1 hg6-+) 24...Re6? (24...Be5 25.Be5 Ne5 26.Qe4 Re6+=) 25.a3?? (better 25.Qc6 Qf7 26.Qd5 Qf2 27.Kh1+-) 25...Nb8 26.Rc2 Nd7 (26...c6 27.Qd4 Bc7 28.Rcd2=) 27.Bh3+= Rh6 28.Bd7 Qd7 29.Qe4 Rh2?? Attacking the backward pawn on f2 (better 29...Qh3 30.Qg2 Qg4+=) 30.Rd6+- (30.Kh2?! Bg3 31.Kg3 Qd1+-) 30...Qh3 (30...Qd6 31.Kh2 Qd1 32.c5+-) 31.Rd7! Qd7 (31...Qd7 32.Kh2 Deflection) 32.Kh2 h6 (32...c6 33.Bc3 c5 34.Qd5+-) 33.Qg6 Kg8 34.Rd2! Qe7 (34...Qd2 35.Qg7 Mate attack) 35.Qc6 Qf7 (35...Rf7 36.Qa8 Rf8 37.Qa6+-) 36.Qd5 1-0. Czyz,An (2000) - Ochman,S (1785), Wroclaw Open POL, 2019.

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.

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 Be5 14.Ne5 Re5 15.d4 Re6 16.Bf3 c6 17.Nd2 Qd7= 0.09; 13.Qb3 Nf3 (13...Nb6 14.Ne5 Be5 15.Be5 Re5 16.d4 Re8 17.Nc3 Rb8= 0.12) 14.Bf3 Be6 15.d4 c6 16.Nc3 Qh4 17.g3 Nc3= -0.25) 13...Be5 14.Be5 Re5 15.d4 (15.Qb3 b5 16.d4 Re8 17.Bf3 Be6= 0.22) 15...Re8 (15...Re6 16.Bc4 c6 17.Nd2 Qg5= 0.00) 16.Bf3 Bb1 (16...Be6 17.Qc2= Rc8= 0.22) 17.Qb1 Rb8 18.Rc1 c6 19.Rc5 Qd6 (19...Nf6 20.Qf5+=) 20.Bd5+/- cd5 21.Qc2 (21.Qb3 Re5+=) 21...g6 (21...b6 22.Rc6 Qe7 23.Rb1+=) 22.a4 (22.Qb3 Red8+/-) 22...Rbd8 (22...b6 23.Rc7+=) 23.Rb1 (23.a5 b6 24.Rc6 Qe7+-) 23...Re7 24.a5 Qe6 25.Rc7 Rdd7 26.Rbb7 Rc7 27.Rc7 Rc7 28.Qc7 Kg7 29.Qe5 (29.Qb6 Qc8 30.Qc5 Qe6+/-) 29...Kf8 (better 29...Qe5 30.de5 Kf8+/-) 30.Qc7?? (30.Qh8!? Ke7 31.Qh7 Kd6+-) 30...Ke8 (30...Kg7 31.Kf1 h5+/-) 31.h3 h5 32.Kf1 Qd7 33.Qc5 Qa4? (33...Qe6 34.Ke2+/-) 34.Kg1 (34.Qc8 Ke7 35.Qb7 Kf8 36.Qb8 Kg7 37.Qe5 Kf8 38.Qh8 Ke7 39.g4 hg4 40.Qe5 Kf8 41.Qd6 Ke8 42.Qb8 Ke7 43.Qc7 Ke8 44.Qc8 Ke7 45.Qc5 Ke8 46.h4 Qd1 47.Kg2 Qf3 48.Kg1 Qd1 49.Kh2=) 34...Qd7+/- 35.f4 (35.h4 Qe6+/-) 35...Kd8? (better 35...Qe6 36.Kf2 h4+/-) 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.

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 (worse 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 (37.Nb6 Qc6 38.Qc6 Nc6 39.g4+-) 1-0. Krasny,Henryk Jan - Bilsel,Sabahaddin, corr TKM/SF/01, 2001.

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 (26...Ra8 27.Rc1-/+) 27.Qa6 (27.Rd1 Re7-/+) 27...Re6-/+ 28.Bd5 (28.Bg4 f5 29.Bg7 Qg5-+) 28...Rd5 Black is in command (28...Bd5?! 29.Qb5 Bd2 30.Rd1+=) 29.Ra8 (29.Bc3 Bf8-/+) 29...Bf8 30.Rb8 Rd2 31.Ba3 Re8 (31...Be8 32.Qa5 Rc2 33.Bf8 Qf8 34.Nf3-/+) 32.Re8-/+ Be8 33.Qa8 (33.Nf3 Rd3 34.Bf8 Qf8-/+) 33...Ba3 (better 33...Bd7!?-+) 34.Qe8=+ Qf8 35.Qb5 c3 36.Nf3 Rb2 37.Qc4 (37.Qd3 Qg7=+) 37...c2 38.Kg2 (38.Qc6 Qd6 39.Qc8 Kg7 40.Qc3 Kh6=+) 38...c1Q-/+ 39.Rc1 Rb4 ½-½. Krolik,Zenon - Kuhlmann,Antonius Egidius J, corr ICCF TT0 SF, 1996.

11.d3 Rad8 12.a3 Ba5 13.Qc2 Qh6 (13...a6 14.Rd1=) 14.Nc3= Ne3 (14...Bb6 15.Nd5 Rd5 16.Bc3=) 15.fe3+= Qe3 16.Rf2?? (better 16.Kh1+=) 16...Bb6-+ (16...Bd3?! 17.Bd3 Qd3 18.Rd1 Qc2 19.Rc2 Rd1 20.Nd1=) 17.Nd1?? (better 17.Raf1 Bd3 18.Bd3 Qd3 19.Kh1 Bf2 20.Qf2-/+) 17...Qe2 18.Qe2 (18.Qc3 f6 19.Qb3 Qe6 20.Qe6 Re6-+) 18...Re2 19.d4 Nd4 20.Bd4 Rd4 (worse 20...Bd4 21.Nd4 Re1 22.Rf1 Rf1 23.Kf1 Rd4 24.Nf2-+) 21.Nd4 (21.Kh1 Rf2 22.Nf2-+) 21...Re1 (better 21...Bd4!? 22.Kf1 Rf2 23.Nf2 Ba1 24.Ke2-+) 22.Rf1 Bd4 (22...Bd4 23.Ne3 Re3-+ (23...Ba1?! 24.Re1 Bd4 25.Kf2-+)) 0-1. pacalmisu (2390) - proudpanda (2565), Rated Blitz game, lichess.org, 2016.

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 (12.a3 Ba5=+) 12...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 (17.Nc4 Nc4 18.bc4 b5=+) 17...Bd3 (17...a5 18.Nc4 Nc4 19.bc4=+) 18.Re1=+ a6 19.e4 Qf4 20.e5 (20.g3!? Qf6 21.Ne5=+) 20...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 (30...Re6 31.Ra1-/+) 31.Ra1 (31.Kh2 Qh5 32.Kg2 Kg7-/+) 31...Rg8 32.Nh2 (32.Ra4 Kg7-/+) 32...Qf4 33.Nhf3 Bd2 34.Kh1? (better 34.Nd2 Qf5 35.Nc4=+) 34...Qf5-+ 35.Nd2 Qh3. Pohl - Betzelt,Thomas, 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 =+.

12.Qa4 Re4 (12...Rad8 13.Nc3=+) 13.Qb3 Rae8 (13...Nf4 14.ef4 Re2 15.Nc3-/+) 14.Nc3 (better 14.Bd3+=) 14...Nb6?? (better 14...Bc3 15.dc3 Nf4=) 15.Ne4+- Be4 16.d3 Bd5 17.Qc2 Qg6 (17...f5 18.Rfd1+-) 18.Bc3 (18.e4!? Be6+-) 18...Bc3 19.Qc3 Nd7 (19...f5!?+-) 20.e4 Be6 21.Nd4?? (better 21.Rfb1 Rb8 22.Rb5+-) 21...Bh3= 22.g3 Bf1 23.Bf1 Nd4 (23...Qf6 24.Nb5 Qc3 25.Nc3=) 24.Qd4 Ne5 (better 24...Qc6=) 25.Bg2?? (better 25.Qa7 Qc6 26.Qe3+/-) 25...Qf6-/+ 26.Kh1 Rd8 27.Qb2 (27.Qa7!? Nd3 28.Rf1=+) 27...Nd3 (27...Rd3?! 28.Qb7 Qd8 29.h3=) 28.Qf6 gf6 29.Kg1 Nc5 30.Rc1 b6 31.f4 Rd2 32.Bf3 (32.Re1 Rd3-+) 32...Kg7 (32...Rd3!? 33.Kf2 Ra3 34.Rc2-+) 33.Rc3 Nd3?? (33...Ne6 34.Bg4 c5 35.h3-+) 34.h4?? (better 34.Rc7 Nf2 35.Bh5+/- (worse 35.Ra7 Nh3 36.Kh1 Kg6=)) 34...Ne1 (34...c5 35.Bg2-+) 35.Bh1 (better 35.Bg4 c5 36.Kf1-+) 35...Nd3 (35...c5!? 36.a4-+) 36.Bf3 Nf2?? (better 36...c5 37.Bg2 Ne1-+) 37.Rc7= Nh3 38.Kh1 Nf2 39.Kg2 Ne4 40.Kg1 Ng3 41.Bc6?? (better 41.Ra7 Rd4 42.Rb7=+) 41...Ne2 (41...Rc2 42.Rc8-+) 42.Kf1 (42.Kf2 Nf4 43.Ke3 Nd5 44.Kd2 Nc7 45.Be4-+) 42...Nf4 (better 42...Rc2 43.Rc8-+) 43.Ke1?? (better 43.Ra7 Ng6 44.Rb7-/+) 43...Rc2-+ 44.Rc8 Ne6 (44...Ng6 45.Bd7 Rc8 46.Bc8 Nh4 47.Ke2-+) 45.Kd1 (45.Bd7 Nd4 46.Kf1 Rc8 47.Bc8 b5-+) 45...Rc5 46.Kd2 Nd4 (46...Kh6 47.Ke3-+) 47.Bd7 (47.Bb7 Rc8 48.Bc8 f5-+) 47...Rc8 (47...Nf3!? 48.Ke3 Rc8 49.Bc8 Nh4 50.Kf4-+) 48.Bc8 Kf8 (48...f5 49.Ke3 Ne6 50.Kf3-+) 49.Kd3 Nc6 (better 49...Ne6-+) 50.Bd7 (50.Ke4-+) 50...Ne5 51.Kd4 Nd7 52.Kd5 (52.h5 Kg7-+) 52...Ke7 53.Kc6 f5 54.h5 (54.Kd5-+) 54...f4 55.Kd5 f3 56.Ke4 f2 57.Ke3 f1Q 58.Ke4 Qa6 (58...Qe2 59.Kf4 Qf2 60.Ke4 Nc5 61.Ke5 Qg3 62.Kf5 f6 63.a4 Qf3) 59.Kf5 Qa3 60.Kg5 (60.Kg4 Nf6 61.Kh4 Ne4 62.Kg4 Qg3 63.Kf5 Nd6) 60...Qh3 61.Kh6 (61.Kf4 Nf6 62.Kg5 Qg4 63.Kh6 Nh5 64.Kh7 Qg7) 61...Qh5! 62.Kh5 ½-½. pacalmisu (2200) - FADPhilidor (2150), Rated Blitz game, lichess.org, 2015.

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.

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 (15.Qc3 Qh6=) 15...Be4 16.a4 (16.d4 Qg6=) 16...Na5 (16...a5 17.Qb2 Qg6 18.Nh4=) 17.Ba5 (17.Qb2 Qg6=) 17...Ba5 The pressure on the backward pawn d2 grows 18.d4 Re7 19.Ng5 Bd5 20.Qc2 Threatening mate... how? 20...g6 (20...Qh6 21.Qf5 c6 22.Bd3=) 21.Bf3 c6 22.Bd5 Qd5 23.Nf3 Qe6 (23...Bc7 24.Qb2=) 24.Rab1 Bc7 25.h3 Rb8 (25...Bd6 26.a5+=) 26.Rb3 (26.Qc5 a6+=) 26...a6 27.Rcb1 Bd6 28.e4 (28.Nd2 a5+=) 28...Qe4= 29.Qe4 Re4 30.Rb7 Ree8 31.g4 (31.g3 a5+=) 31...a5 (31...h6 32.h4=) 32.g5+= Red8 (32...Kg7 33.Kg2+=) 33.Kf1 Rb7 (33...Kg7 34.R1b6 Rb7 35.Rb7+=) 34.Rb7 c5 35.Rb5 cd4 (35...c4 36.Ke2 Bb4 37.Rb7+=) 36.Nd4 ½-½. Woelfelschneider,Peter - Ster, 1999.

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.

11.a3 Qe7 12.Qb3 Nb6 13.d4 a5 14.Nc3 (14.Qb5 Be6 15.Qh5 (15.a4 Nb4 16.Nc3 f5 17.Ne5 Ra6-/+ -0.94; 15.Nc3 a4 16.Qh5 Ra5 17.Qh4 Qh4=+ -0.47; 15.Bd3 a4 16.Qh5 g6 17.Qh6 Nc4= -0.25; 15.Rd1 a4 16.Nc3 Ra5 17.Qd3 Bc4=+ -0.34) 15...Bc4 16.Bc4 Nc4 17.Qb5 Nb6= -0.09; 14.d5 Ne5 (14...a4) 15.Nd4 (15.Ne5 Be5 16.Bf3 a4 17.Qb5 Nd5=+ -0.66) 15...a4 16.Qa2 Bd3 17.Nc3 Rad8=+ -0.41) 14...a4 (14...Qf6 15.Rfc1 (15.d5 Ne5 16.Nd4 a4 17.Qa2 Qh6= -0.22; 15.Nb5; 15.Qb5) 15...a4 16.Qd1 Re7 17.Bb5 Bg4= 0.09; 14...Qd7 15.Qb5 (15.d5) 15...Rad8 16.Rfd1 Bg4 17.h3 Bf5+= 0.44; 14...Bg4 15.Rfd1 (15.Nb5; 15.Qc2) 15...Rad8 16.h3 Bf5 17.d5 Ne5= 0.19) 15.Qd1 Bd7 (15...Red8 16.Bb5 Na5 17.Na4 Nbc4=+ -0.28) 16.Nb5 (16.Qc2 Ra5 17.e4 f6= 0.12) 16...Na5 (16...Be6 17.Nd6 Qd6= 0.06) 17.Nd6 Qd6 (17...cd6= 0.25) 18.Bc3 (18.Qc2 Nb3 19.Rad1 Ra5+=) 18...Nd5 (18...Nb3 19.Bb4 Qf6 20.Ra2=) 19.Ba5+= Ra5 20.Qd2 (20.Qc2 c5=) 20...b6 21.Ne5 Bb5 22.Nc4 Bc4 23.Bc4 Nf6 24.Qb4 c5 25.dc5 Qc5 (better 25...Rc5 26.Qa4 Re4 27.Qa8 Re8=) 26.Rac1 (26.Rab1 Qb4 27.Rb4 Rc5+=) 26...Qe5?? (better 26...Qb4 27.ab4 Ra7=+) 27.Qb6 Rc5?? (better 27...Ng4 28.g3 Qh5+/-) 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?? (better 13.e4+-) 13...Nbd5= 14.Qb3 Nc3 15.Bc3 Be4 16.Ng5 (16.Bb4 Nc6=) 16...Bd5 17.Bc4 Bc4 18.Qc4 Rf8 (18...Nd5 19.Nf7 Bh2 20.Kh2 Kf7 21.Rab1=) 19.f4 h6 20.Ne4 (20.Nh3 c6=) 20...Nf5 21.Rf3 Re8 22.d5 Bf8 (22...Qe7 23.Nd6 cd6 24.Qd3=+) 23.Rh3 Qe7 24.Be5 Rac8 (24...f6!? 25.d6 Qf7 26.Qf7 Kf7-/+) 25.Qd3 Nd6 26.Ng5 (26.Nd6 cd6 27.Bd4 a6+=) 26...f5= 27.Ne6 Ne4 28.Qd4 (28.Qb3 b6=) 28...c5 29.Qc4 Nd6 (29...Qd7 30.a4=) 30.Qc2 (30.Bd6 Qd6 31.Rb1 Re7+=) 30...Ne4= 31.Qc4 Qf7 32.Rd1 (32.a4 Nd2 33.Qb5 c4=) 32...Nd6 (32...Qd7!? 33.Qe2 c4=) 33.Bd6 Bd6 34.Rf1 Qf6 35.a4 Re7 36.Rg3 b6 37.h3 Rce8 38.Rd1 Kh8 (38...Qh4 39.Kh2 Qh5 40.Qc3+=) 39.Kf2 (39.a5 Qh4 40.Kh2 ba5+/-) 39...Kh7 40.Kf3 (40.Qb5 Rc8=) 40...Rf7 41.Rh1 g6 42.h4 White gets deadly initiative 42...Re6 43.de6 Re7 44.h5 g5 45.Rd1 g4 (45...Re6 46.Kf2+=) 46.Kf2+/- Re6 (46...Qe6? 47.Qd5 Qd5 48.Rd5+-) 47.Qc2 Kg7 (47...Qf7!? 48.Rg4 Qh5+/-) 48.Rd5 Re4 49.Rg4! Kf8 (49...fg4 50.Qe4) 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.

12.Bc3 a6 13.a4 Rb8 (13...Qd7 14.d3=) 14.d4 (14.d3 Nb4=) 14...b5 (14...Be4 15.Bd3=) 15.ab5 ab5 16.Bd3 (16.d5 Ne7 17.Qd4 f6=) 16...Bg6 (16...Ne7!?=) 17.Bg6+= hg6 18.Rb1 (18.d5 Ne5+=) 18...b4= 19.Bb2 Na5 20.Qd3 (20.Qa4 Nb7=) 20...Qd7 (20...c5 21.Nd2=+) 21.Rfc1 Qf5 22.Qf5 (22.Qd1 Qd5=) 22...gf5=+ 23.g3 Rb5 24.Ne5? (better is 24.Kf1!?=) 24...Be5–/+ 25.de5 c5 26.f4 (26.h3 c4–/+) 26...Nb3 27.Rc2 Rd8 28.Kf2 ½–½. Fengsrud,Roy – Daconto,Ricardo, corr 3GMM–08, 1997.

12.Bc3 a6 13.Qb3 b5 14.Rac1 Be4 15.Qb2 f6 16.d3 Bd5 17.e4 Bf7 18.Bf6 Qf6 19.Qf6 gf6 20.Rc6 f5 21.a4 (21.Nd2 Bf4 22.Rc2 Rad8=) 21...ba4 (21...fe4 22.Nd2 Bd5 23.Rd6 cd6 24.de4 ba4 25.Ra1-/+) 22.Ra1 (22.Ng5 Bg6=) 22...a3 (22...fe4!? 23.Nd2 ed3 24.Bd3 Red8-/+) 23.e5 (23.Ng5 Bg6=+) 23...Be5-/+ 24.Ne5 Re5 25.Bf3 (25.Bf1!? a2 26.Rc7-/+) 25...a2 26.Rc7 Rb8 27.h4 (27.Rcc1 Reb5 28.Ra2 Ba2 29.g3-+) 27...Rb1 28.Rc1 Rc1 29.Rc1 Ra5 (better 29...Rb5 30.Kh2 Rb1 31.Rc8 Kg7-+) 30.Ra1 Rb5 31.Bd1 (31.Ra2 Ba2 32.Kf1-+) 31...Rb1 32.Ra2 Ba2 (32...Ba2 33.Kh2 Rd1-+) 0-1. carlos78 (2230) - Daikai (2070), Rated Blitz game, lichess.org, 2015.

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 White gets the initiative 14...Bd5 15.e4 c5 (better 15...Bc6!?+=) 16.Nf5+/- (16.ed5?! cd4 17.Bd4 Nf3 18.Bf3 Qh4=) 16...Be6 17.f4 (17.Nd6?! Qd6 18.f4 Nc6=) 17...Ng6 (better 17...Bf5!? 18.fe5 Be5 19.Be5 Re5 20.Rf5 Rf5 21.ef5 Qd4 22.Kh1 Rd8+/-) 18.Nd6+- (worse 18.Ng7 Rf8 19.Ne6 fe6+/-) 18...Qd6 19.f5 Nh4 20.fe6 Re6 21.Qe1 (21.Qe1 Qe7 22.Rd1+-) 1-0. Poenisch,Eckehard (2225) - Dietze,Frank (2205), Oberliga Ost-A, 2003.

12.Bc3 Qe7 13.d4 =.

11.a3 Ba5 12.Qb3 Bb6 13.Nc3 Nc3 14.Qc3 f6 15.d4 Rad8 16.a4 Kh8 (16...Ba5!? 17.Qb3 Be6=) 17.a5+/- (17.a5 Bd4 18.Nd4 Nd4 19.Qd4 Qd4 20.Bd4 (worse 20.ed4 Re2 21.Bc3 Re7-/+) 20...Rd4 21.ed4 Re2 22.Rfe1 Re1 23.Re1+-) 1-0. carlos78 (2160) - Gorbenko (2010), Rated Blitz game, lichess.org, 2015.

11.a3 Ba5 12.Qb3 Rad8 13.Nc3 (13.Qb7?? Rb8 14.Qa6 Rb6-+ (14...Rb2?! 15.Bb5 Rb5 16.Qb5-+)) 13...Nc3 14.Bc3 Bc3 15.Qc3 Bd3 16.Bd3 Qd3 17.Qd3 Rd3 18.Rab1 b6 19.Rfc1 Re6 20.Rc4 Ra3 21.Rbc1 g6 22.h3 (22.Rc6?? Rc6 23.Rb1 a5-+) 22...Ne5 23.Ne5 Re5 24.Rc7 a5 25.d4 Re6 26.Rb7 Rb3 27.Rc8 Kg7 28.Ra8 Rf6 29.Ra5 Rb1 30.Kh2 Rf2 31.Ra6 Rbb2 32.Rab6? (better 32.Kg3!?=) 32...Rg2-/+ 33.Kh1 Rbe2 34.Rb3 Rgf2 35.Kg1 Rf3 The backward pawn on e3 becomes a target 36.Re7 Rh3 37.Kf1 (37.Rbb7!?=+) 37...Ra2 38.Rbb7?? (better 38.Kg1-/+) 38…Rh1 0-1. pacalmisu (2470) - piongu (2540), Rated Blitz game, lichess.org, 2016.

11.a3 Ba5 12.Nd4 Nd4=+ 13.Bd4 Bb6 14.Bb6 ab6 15.d4 (15.Nc3 Nc3 16.dc3 Qc6=+) 15...Bb1 16.Qb1 Nc3 17.Qd3 Ne4 (better 17...Ne2!? 18.Qe2 Qd4=+) 18.Bf3 Nd6 19.Rfc1 c6 20.Qb3 b5 21.a4 ba4 22.Ra4 Ra4 23.Qa4 g6 (23...Qe7 24.Ra1+=) 24.h3 (24.d5 Rc8 25.dc6 bc6 26.Rc6 h6+/-) 24...Kg7 (24...Qe6 25.Ra1+=) 25.Rb1 (25.d5!? Rc8 26.dc6 bc6 27.Rc6+/-) 25...Qe7 26.Qa3 Qf6 27.Be2 Qf5 (27...Ne4 28.Rf1+=) 28.Qb2 Kg8 29.Bf1 (29.Ra1 Kg7+=) 29...Ra8 30.Qb4 (30.Ra1 Ra1 31.Qa1 Qc2=) 30...Qf6 (30...Ra2 31.Rb2 c5 32.Qb6 Rb2 33.Qb2 cd4 34.Qd4=) 31.Rd1 Ra2 32.Rd2 Ra1 33.Qb2 Re1 34.Re2 Rd1 35.Qc2 (35.Qb3 Rc1=) 35...Ra1 36.g3?? (36.Qc3 Rd1+=) 36...Qe6 (better 36...Qf3 37.Rd2 Ne4-+) 37.Kg2 (better 37.Qc3!? Rd1 38.Qc2=) 37...Ne4-/+ 38.f3 (38.Qd3 Qd5 39.Kg1 Qf5-/+) 38...Ng5 39.g4 h5 (39...Nf3 40.Qc3 Rd1-+) 40.f4?? (40.Qb2 hg4 41.hg4 Rd1 42.Qb7 Nf3 43.Qb8 Kg7=) 40...Ne4?? (40...Nh3 41.f5 Qd5 42.e4 Nf4 43.Kg3 Ne2 44.Qe2 Qd4 45.fg6 Qd6 46.e5 Qg6 47.Bg2-+) 41.g5?? (41.Qb2 Ra5 A) 42.Qb7 hg4 43.Rb2 Ra1 (43...gh3 44.Kf3 Nf6 45.Kf2 Ng4 46.Kg3 Qe3 47.Kg4-+) 44.Qb8 Kh7-+; B) 42.g5=+) 41...h4-+ 42.Qb2 Rd1 (42...Rf1 43.Qa2 Qa2 44.Ra2-+) 43.Qc2? (43.Qa2 Qf5 44.Qb3 Ng5 45.Kf2-+) 43...Ra1 (43...Rf1 44.Qa2 Qa2 45.Ra2-+) 44.Qb2 Rd1 45.Qb3?? (better 45.Qc2 Rf1 46.Qa2 Qa2 47.Ra2-+) 45...Qb3 46.d5 (46.Kh2 Rf1 47.Rg2 Qe3 48.Rg4 Ng3 49.Rg3 Qg3) 46…cd5 (46...cd5 47.Rf2 Qe3 48.Rf3 Rd2 49.Kh1 Qf3 50.Kg1 Qe3 51.Kh1 Ng3; 46...Rf1 47.Kf1 Qd1 48.Kg2 Qe2 49.Kh1 Qf2 50.dc6 Ng3) 0-1. carlos78 (2220) - pacalmisu (2110), Rated Blitz game, lichess.org, 2015.

11.a3 Bf8 12.d4 a5 13.Bb5 Rad8 (13...Bd6 14.Nc3 Nc3 15.Bc3=) 14.Nbd2 Qc8 (14...Qd6 15.Ne5 Ne5 16.de5 (worse 16.Be8 Ng4 17.Bf7 Kf7–/+) 16...Re5 17.Nc4+=) 15.Nc4 Qa8 16.Qd2 Nb6 (16...a4 17.Rae1+=) 17.Nb6+- cb6 18.Rfc1 Be4 19.Ng5 Rd5 (19...Bg6 20.Bd3+=) 20.Ne4+- Rb5 21.Nc3 Rh5 22.Qe2 g6 (22...Rh6 23.d5 Na7 24.h3+-) 23.Qf3 (23.d5 Na7+-) 23...Qb8 24.g3 (24.h3 Qd8+-) 24...Bg7+= 25.Na4 (25.Rd1 Qd8+=) 25...Qd8 26.Rcb1 Bf8 27.Rd1 b5 28.Nc5 Qe7 (28...Rf5!? 29.Qg2 Bc5 30.dc5 Qc7=) 29.Rac1+- Rc8 (29...Rf5 30.Qg2 b4 31.d5 ba3 A) 32.dc6?? ab2 (32...Rc5?! 33.Ba3 Rc1 34.Bc1=+) 33.Nb7 bc1R 34.Rc1 Qc7–+; B) 32.Ba3+-) 30.e4 (30.d5!? Rf5 31.Qg2+-) 30...Bg7 31.e5 Rf5 (31...Ne5 32.de5 Rc5 33.Rc5 Qc5 34.Rd8 Bf8 35.g4 Re5 36.Be5 Qe5 37.Rd7+=) 32.Qe3+- f6 (32...Rh5 33.f4 Nd8 34.d5+-) 33.f4 (33.g4!? Rg5 34.f3+-) 33...fe5+- 34.de5 Rd8 (34...a4!?+-) 35.Qb3+- Kh8 (35...Rf7 36.Ne4 Rd1 37.Rd1+- (37.Qd1?! b4+-)) 36.Qb5 g5 (36...Rf7 37.Rd8 Nd8 38.Ne4+-) 37.Nb7 Rd1?! (37...Rb8 38.Qc6 Rb7+-) 38.Rd1 Nb8 39.Rd8 Rf8 40.Rf8 Qf8 41.Nd6 gf4 (41...h6 42.fg5 hg5 43.Ne8+-) 42.gf4 (42.e6!? Nc6 43.Qc6 Bb2+-) 42...h6 43.f5 Kh7 44.f6 Bf6 (44...Kg8 45.Ne8 Qf7 46.Ng7 Nd7+-) 45.Qd3 Kg8 46.ef6 Qd8 (46...Qd6 47.Qd6 Kf7 48.Qe7 Kg6 49.f7 Nd7 50.f8Q Nf8 51.Qf6 Kh5 52.Qf5 Kh4 53.Bf6) 47.Qg6 (47.Qg6 Kf8 48.Qg7) 1–0. Ramos Moreno,Francisco Jose (2130) – Gavilan Diaz,Mario (2275), 13th Open, 2010.

11.Qb3 Rab8 12.Bc4 Be6 13.Nd4 Nd4 14.Bd4 c5 15.Be5 Rbc8 16.d4 cd4 17.Bd4 Rc4 18.Qc4 Ne3 19.Qb4 Nf1 20.Kf1 b5 21.Be3 Bc4 22.Ke1 Qd3 23.Nc3 Re3 24.fe3 Qe3 25.Kd1 Time forfeit 1-0. RichardSommer (1960) - lit_yagz174 (1940), lichess.org, 2020.

11.Bb5 Bd6 12.d3 (12.Nd4 Rab8=) 12...Bg4=+ 13.Nbd2 a6 14.Bc6 Qc6 15.h3 Bh5 (15...Be6 16.Ne4=) 16.Qb3 Qb5 17.Rfc1 (17.Qb5 ab5 18.Ne4 Bf3 19.gf3 Nb4=+) 17...Qb3 18.ab3 Nb4 19.Ne1 (19.Rc3 Rad8=) 19...c6 (19...Bg6 20.Nc4=) 20.Ne4 (20.Nc4 Bc7=) 20...Bf8 21.Nc5 Bc5 22.Rc5 Bg6 (22...Be2 23.Rg5 g6 24.d4=) 23.Rc3 Nd5 24.Rc4 f6 25.Kf1 Nc7 26.Rcc1 (26.Bd4 Bf7 27.Rca4 Nb5=+ (worse 27...Bb3 28.Rb4+=)) 26...Rad8 27.e4 (27.Ke2 Bf7 28.b4 Ne6=) ½-½. Dopper,Johan - Hofland,Leo, NBC Email, 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.

12.Qb3 Re6 13.Nc3= (13.Qd5?? Bh2 14.Kh2 Qd5-+) 13...Nc3 14.Qc3 Ne5 (14...Rf6 15.Rfd1=) 15.Qb3 (15.Nh4 Rf6 16.f4 Nc6 17.Nf5 Qf5+-) 15...Be4? (15...Nf3 16.Bf3 c6 17.g3=) 16.Be5?? (better 16.Ng5 Qc6 17.Ne6+-) 16...Be5= (16...Re5? 17.Ne5 Be5 18.d4+-) 17.Ne5 Re5 18.d4 Re7 19.f3 Bd5 20.Qc3 f5 21.Rfe1 Rae8 22.Bc4 Bc4 23.Qc4 Qe6 24.Qe6 Re6 25.Kf2 Kf7 26.Rac1 R8e7 27.Rc5 g6 28.a4 Ra6 29.a5 b6 30.ab6 cb6 31.Rc2 Ra4 32.Rec1 (32.Rb2 f4=+) 32...f4=+ 33.e4 (33.ef4 Rd4 Deflection) 33...Rd4 34.Rc7 (34.g3 fg3 35.hg3 Rd6=+) 34...Rdd7 (34...Rd2 35.Ke1 Rg2 36.Re7 Ke7 37.Rc7 Kd6 38.Ra7 Rh2 39.Rf7-+) 35.R7c6 (35.R7c2 b5-/+) 35...Re6 (35...Rd2 36.Kf1-+) 36.Rc8 a5 37.Ra8 Rb7 (37...Rd2!? 38.Kf1 Re7-/+) 38.Ke2 Rd6 (38...Re5 39.Rb1=+) 39.Rcc8 (39.Ra6 h5=+) 39...Rbd7 40.Rc2 Rd3 (40...Rd1 41.Rb2=+) 41.Rb8 (41.g3!?=+) 41...Rb3-/+ 42.Kf2? (better 42.Ra8!?-/+) 42...a4-+ 43.g3 g5 (43...fg3 44.Kg3 a3 45.Kf4-+) 44.gf4 (44.Rh8 Kg7 45.Rb8 fg3 46.Kg3 Rf7-+) 44...gf4 45.Kg2 (45.e5 a3 46.Re2 Re7-+) 45...a3 46.Rcc8? (46.Kh3 h5 47.Ra2-+) 46...Ra7 47.Rf8 Ke6 48.Rbd8 (48.Rfe8 Kd6 49.Ra8 Rg7 50.Kh3 Rf3 51.Kh4-+) 48...a2 49.Rfe8 Kf6 50.Rf8 Kg6 51.Rg8 Rg7 52.Rg7 Kg7 53.Ra8 Rb2 54.Kh3 b5 55.Kg4 b4 56.Kf4 (56.Kf5 Rh2 57.Ra7 Kf8 58.Ra8 Ke7 59.Ra7 Kd8 60.Ke5-+) 56...b3 57.Ra7 Kf6 58.e5 Ke6 59.Ra6 Kd7 60.Ra7 Kd8 61.e6 (61.Ra8 Kc7 62.e6 Rb1-+) 61...Rd2 62.Ke5 b2 (62...Rd1 63.Ra8 Kc7 64.e7 Re1 65.Kf4-+) 63.Ra8 (63.Ra2 Ke8 64.Rb2 Rb2 65.h3-+) 63...Kc7 64.Ra7 Kb6 65.Ra2 Re2 (better 65...b1Q 66.Rd2 Qe1 67.Kf6 Qd2-+) 66.Kd6 (66.Kf4 Rg2 67.h3-+) 66...b1Q 67.Re2 Qd3 68.Ke5 Qe2 69.Kf6 Qf3 70.Ke7 Qe4 (70...Kc6 71.h3 Qf5 72.h4 h5 73.Ke8 Qf6 74.e7 Qf4 75.Kd8 Qb8) 71.Kd6 Qd4 72.Ke7 Kc6 73.Kf7 (73.Kf8 Qh8 74.Kf7 Qe5 75.h3 Kd6 76.h4 Qh5 77.Kg8 Ke6 78.Kh8 Kf6 79.Kg8 Qf7 80.Kh8 Qg7) 73...Qe5 74.e7 (74.h4 Kd6 75.h5 Qh5 76.Kf8 Ke6 77.Kg7 Qg4 78.Kh7 Kf6 79.Kh6 Qg6) 74...Kd7 75.e8Q Qe8 76.Kg7 (76.Kf6 Qh5 77.h3 Kd6 78.Kg7 Qg6 79.Kh8 Ke6 80.h4 Kf6 81.h5 Qg7) 76...Qg6 77.Kh8 Ke7 78.h4 (78.h3 Kf6 79.h4 Qg7) 78...Kf8 79.h5 Qg8 (79...Qg7) 0-1. norba94 (2395) - Voat (2595), Rated Blitz game, lichess.org, 2016.

12.Qb3 Nf4 13.Bb5 Ng2! 14.Kg2 (14.Qc3 Bf8 15.d4 Be4 16.Bc6 bc6-+ (worse 16...Bc6 17.e4 Nf4 18.Kh1-+)) 14...Bh3 15.Kh1 Qg4 (worse 15...Bf1 16.Bf1 Rad8 17.Ng5+/- (17.Qb7? Rb8 18.Qa6 Rb2-+)) 16.Ne1 Bf1 (16...Qh5 17.f4 Bf1 18.Bf1 Bf4 19.h3=+) 17.Bf1=+ Qh4 18.Nf3 Qf2 19.Bg2 Re6 20.Nc3? (better 20.Qb5!?-/+) 20...Rg6-+ 21.Rg1 Rg2! 22.Rg2 (22.Rg2 Qf3 Remove defender) 22...Qf3 23.Qb7?? (better 23.Nd5 Rd8 24.Bg7=+) 23...Rb8-+ 24.Qc6 (24.Qa6 Rb2 25.Qc8 Bf8 26.Kg1-+) 24...Qc6 25.Nd5 (25.Ba1 Ba3 26.Kg1-+) 25...Rb2 26.Rg7 (26.Nf6 Kh8 27.e4 Qc1 28.Rg1 Qd2 29.Ng4 Qh2 30.Nh2 Rh2) 26…Kg7 (26...Kg7 27.Kg2 Qd5 28.e4 Rd2 29.Kf1 Qd3 30.Ke1 Qe2) 0-1. norba94 (2435) - Voat (2575), Rated Blitz game, lichess.org, 2016.

12.Nc3 Nc3 13.Bc3 Ne5 (13...Qe6 14.Bb5=) 14.Ne5= Be5 15.d4 (15.Be5 Re5 16.d4 Ree8=) 15...Bd6 16.Bd3 (16.Bb4 Rac8=) 16...Re7 (16...Bd3 17.Qd3 Rad8 18.Rfd1=) 17.Qc2 (17.Bf5 Qf5 18.Bb4 Rd8=) 17...Bd3 18.Qd3 Rae8 (18...Rd8 19.Rfd1=) 19.Rfe1 (19.Rfc1 c5=) 19...Qg4 (19...c5 20.Red1 Qc7 21.dc5 Bh2 22.Kh1=) 20.Bb4 h5 (20...Rd8 21.Bd6 Rd6 22.Qb5=) 21.h3 (21.Bd6 cd6 22.Rac1 h4+=) 21...Qh4 (21...Qe4 22.Qe4 Re4 23.Rab1+=) 22.Bd6 cd6 23.Rac1 (23.Rec1 Qe4 24.Qe4 Re4+=) 23...Re6 (23...Qe4 24.Qe4 Re4 25.Rc7+=) 24.Re2 (24.Qb5 R6e7+-) 24...Qg5 (24...R6e7 25.Qb5+-) 25.g3 (25.Rc7 R6e7 26.Rec2 h4+-) 25...Qd5 (25...h4 26.g4+=) 26.Rec2 (26.Rb2 a6+=) 26...h4 27.g4 Qf3 28.Qf1 Qd5 (28...f5 29.Qg2 fg4 30.hg4 Qg2 31.Kg2=) 29.Qg2+= Qb3 (29...Qb5 30.a4 Qb3 31.Rc3+-) 30.Rc3 Qb5 31.Qf1 (31.a4 Qb4+=) 31...Qa5 (31...Qd5 32.Qd3+=) 32.Qd3 g6 (32...R6e7 33.Rc8+=) 33.Rc7 (33.Qf1 b6+=) 33...Qd5 (33...R6e7 34.Re7 Re7 35.d5+=) 34.Qf1 (34.Rb1 Qf3 35.Qf1 R8e7 36.Rbb7 Qb7 37.Rb7 Rb7+-) 34...R8e7 35.Qg2 Qb3 (35...Qg2 36.Kg2 Kg7 37.Re7 Re7 38.g5+=) 36.R1c3 (36.R7c3 Qb5+=) 36...Qb1 37.Qf1 (37.Kh2 Kg7+=) 37...Qa2 (37...Rc7 38.Qb1 Rc3 39.Qb7 Rc1 40.Kg2+-) 38.Qd3 (38.Rc8 Kg7+=) 38...Rc7 (38...Qd5 39.Qc4 Qc4 40.R3c4+=) 39.Rc7 Rf6 40.Rc8 (40.Rc2 Qe6+=) 40...Kg7= 41.f4 (better 41.Rc2!? Qb1 42.Kg2=) 41...d5–/+ 42.Qc3 (42.Rc3!?–/+) 42...Rb6 43.Qe1 Rb2 44.f5 Rb1 (44...Rg2 45.Kf1 g5 46.Rf8 Rh2 47.Qg3 hg3 48.Rf7 Kf7 49.e4 Qf2) 45.Rc1 Rc1 46.Qc1 Qe2 47.fg6 Kg6 (47...Qf3 48.Qc7 Qe3 49.Kh2 Kg6 50.Qc2 Kg7 51.Qf5–+) 48.Qb1 (better 48.a4!?–/+) 48...Kg7–+ 49.Qf5 Qe3 50.Kf1 Qh3 (50...b5 51.Qe5 Qe5 52.de5–+) 51.Ke1 (51.Ke2 Qh2 52.Kf1–+) 51...Qe3 52.Kf1 h3 (52...Qd4?! 53.Qg5 Kh7 54.Qh4 Kg6 55.Qh5 Kg7 56.Qg5 Kf8 57.Qd8 Kg7 58.Qg5 Kh8 59.Qd8 Kg7 60.Qg5=) 53.g5 (53.Qd5 h2 54.Qh1 Qa3 55.Qh2 Qc1 56.Kf2 Qd2 57.Kg3 Qh2 58.Kh2–+) 53...h2 54.Qf6 Kg8 55.Qd8 Kh7 56.g6 Kg6 (56...Kg7 57.Qd5 Qg1 58.Ke2–+) 57.Qg8 (57.Qd6 f6 58.Qh2 Qc1 59.Kf2 Qd2 60.Kg3 Qh2 61.Kh2 Kf5–+) 57...Kf6 58.Qh8 Ke7 (58...Kf5 59.Qh7 Kg4 60.Qh2 Qc1 61.Kf2 Qd2 62.Kg1 Qh2 63.Kh2–+) 59.Qh4 (59.Qh2 Qc1 60.Kf2 Qd2 61.Kg3 Qh2 62.Kh2 Kd6–+) 59...Kd7 (better 59...Ke6!? 60.Qh2 Qc1 61.Kg2 Qd2 62.Kg3 Qh2 63.Kh2–+) 60.Qh5 (60.Qh2 Qc1 61.Kg2 Qd2 62.Kg3 Qh2 63.Kh2–+) 60…h1Q! (60...h1Q 61.Qh1 Qc1 62.Kg2 Qh1 63.Kh1 Kc6–+) 0–1. Slobodjanac,Sinisa (1810) – Zufic,Miroslav (2395), 1nd Hum na Sutli Croatia, Open, 2017.

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.

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.

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 Ba5 A) 12.Nc3 Rb8 (12...a6 13.Qb3 Nce7 14.Nd4 Rb6 15.Qa2=; 12...Nb6 13.d3 a6 14.Qc2 Rd6 15.Ne4+=; 12...Qd7 13.Qb3 Nb6 14.d4 Re7 15.Rfd1=; 12...Re8 13.Rc1 Nc3 14.Bc3 Bc3 15.Rc3=; 12...Nc3 13.Bc3 Bc3 14.dc3 Qf6 15.Qb3=; 12...Qf6 13.Nd5 Qb2 14.Bc4 Ne5 15.Ne5=; 12...Rc8 13.Qb3 Nb6 14.d4 Bc3 15.Bc3=; 12...Rd6 13.Nd5 Rd5 14.d4 Be4 15.Qb3=) 13.Qb3 Nc3 14.dc3 Qf6 15.c4=; B) 12.Qb3 Rb8 (12...Nce7 13.Nd4 Rb6 14.Qa2 Bb1 15.Rab1=; 12...Rd6 13.Nc3 Nc3 14.Bc3 Bc3 15.dc3=; 12...Nb6 13.d4 Rg6 14.Bc3 Qf6 15.Ba5=; 12...Qd6 13.Nc3 Nc3 14.Bc3 Bc3 15.dc3=; 12...a6 13.Nc3 Nce7 14.Nd4 Rb6 15.Qa2=) 13.Nc3 Nc3 14.dc3 Qf6 15.c4=.

11.a3 Bc5 12.Nc3 Nc3 (12...Nce7 13.Qc1 Bd6 14.Nd5 Nd5 15.Nd4+=; 12...a6 13.d4 Bb6 14.Bc4 Nc3 15.Bc3=; 12...Rb8 13.Qb3 Nc3 14.Qc3 Bf8 15.Rad1=; 12...Re8 13.Qb3 Nc3 14.Bc3 Bb6 15.Qb2+=; 12...Rc8 13.d4 Bb6 14.Bc4 Nc3 15.Bc3=; 12...Na5 13.Qa4 Bb6 14.Nd4 Nc3 15.dc3+=; 12...Nf6 13.d4 Rd6 14.Nh4 Be6 15.Qb1+=; 12...a5 13.Qb3 Nce7 14.d3 Rb6 15.Qc2+=) 13.Bc3 Qd5 14.d3 Rd8 15.Qd2=.

11.a3 Be7 A) 12.d3 Bf6 (12...Qd6 13.Nbd2 Re8 14.Nc4 Qd8 15.e4=; 12...Nb6 13.Nc3 Rd6 14.d4 Qd7 15.Bb5=; 12...Rg6 13.Nc3 Bh3 14.Ne1 Nc3 15.Bc3=; 12...Bd6 13.Nc3 Nc3 14.Bc3 Rg6 15.Qa4=; 12...Qe8 13.Nc3 Nc3 14.Bc3 Rd8 15.Qc2=) 13.Bf6 Qf6 14.d4 Rd8 15.Bc4=; B) 12.Qb3 Nb6 (12...Qd6 13.Nc3 Nb6 14.Nb5 Qd7 15.Nbd4=; 12...Rd6 13.Nc3 Na5 14.Qa4 Nc3 15.Bc3=; 12...Na5 13.Qa4 c5 14.Nc3 b6 15.d4=) 13.d4 Rg6 14.Rd1 Bh3 15.Ne1=; C) 12.Nc3 Rg6 (12...Nc3 13.Bc3 Rg6 14.Qb3 Bh3 15.Ne1=; 12...Rb8 13.Qb3 Nc3 14.Qc3 Rg6 15.d3=; 12...Nb6 13.d4 Na5 14.d5 Rg6 15.Ne5+=; 12...Rh6 13.Qb3 Nb6 14.d4 Bd6 15.h3=) 13.d3 Bh3 14.Ne1 Nc3 15.Bc3=.

11.a3 Bf8 A) 12.d3 Bd6 (12...Qd6 13.Nc3 Nc3 14.Bc3 Be7 15.Qb3=; 12...Bc5 13.Nc3 Nc3 14.Bc3 Rb8 15.d4=; 12...Re8 13.Qc2 Qd6 14.Re1 Qc5 15.Nc3=; 12...Nb6 13.Nc3 Be7 14.Nb5 Bf6 15.Nbd4=; 12...Qe7 13.Nc3 Nc3 14.Bc3 Rd8 15.Qc2=; 12...Rg6 13.Nc3 Nc3 14.Bc3 Bd6 15.Qa4=; 12...Re7 13.Nc3 Nc3 14.Bc3 Rd7 15.d4=; 12...Rb8 13.Re1 Bg6 14.Qc2 Nb6 15.Nbd2=) 13.Nc3 Nc3 14.Bc3 Rg6 15.Qa4=; B) 12.Qb3 Nf4 13.ef4 Re2 14.Nc3 Re8 15.Rfe1=+; C) 12.Re1 Qd6 (12...Nb6 13.d3 Bd6 14.Qc2 Qe7 15.Nc3=; 12...Be7 13.Nc3 Nc3 14.Bc3 Qd5 15.d3=; 12...Rg6 13.Nc3 Bh3 14.Bf1 Bg4 15.d4=; 12...Bc5 13.Qb3 Na5 14.Qa4 c6 15.d3=) 13.Nc3 Nc3 14.dc3 Ree8 15.Qb3=; D) 12.Nc3 Re8 (12...Rd6 13.Nd5 Rd5 14.d4 Qf6 15.Qc1=; 12...Rb8 13.Qb3 Nc3 14.Qc3 Rg6 15.d4=; 12...Nc3 13.Bc3 Qd5 14.Qa4 Bd3 15.Bd3=; 12...Bc5 13.d4 Nc3 14.Bc3 Bb6 15.Qb3=; 12...Qd6 13.Qb3 Nc3 14.dc3 Rb8 15.Rfd1=) 13.Bb5 Nc3 14.Bc3 Qd5 15.Bc6=.

11.Qb3 a5 A) 12.a3 a4 13.Qc4 Bd6 14.Qb5 Bg6 15.Rc1=; B) 12.Qc4 Re8 (12...Qd7 13.Qb5 Ree8 14.Nc3 Nb6 15.a3=; 12...Rb8 13.Nc3 Bc3 14.Bc3 b5 15.Qc5=; 12...Qd6 13.a3 Bc5 14.d4 Bb6 15.Nc3=; 12...a4 13.a3 Bd6 14.Qb5 Bg6 15.Rc1=; 12...Bg6; 12...Nb6; 12...Be4; 12...Rc8) 13.a3 Bd6 14.Nc3 Nb6 15.Qb5=+; C) 12.Nc3 Nc3 (12...Rd6 13.a3 Bc3 14.Bc3 Rb8 15.Rfd1=; 12...Nb6 13.a3 Bd6 14.Na4 Rh6 15.Qc3=) 13.Bc3 a4 14.Qc4 Bc3 15.dc3=.

11.Qb3 Na5 A) 12.Qa4 Qe8 (12...Re8; 12...Re7; 12...Re4) 13.Qe8 Ree8 14.Nc3 Rad8 15.Nd5=+; B) 12.Qd1 Rg6 (12...Bc5 13.Nc3 c6 14.Nd5 Qd5 15.d3=; 12...Bd6 13.Nd4 Rf6 14.f4 Be4 15.Nc3+=; 12...Re7 13.Nd4 Bg6 14.d3 Bd6 15.Nb5=; 12...Re8 13.Nc3 Nb6 14.d3 Nc6 15.a3=; 12...Bg6 13.Nc3 c6 14.Nd5 Qd5 15.d3=; 12...Qd7 13.Nd4 Re7 14.Nf5 Qf5 15.e4=; 12...Qd6 13.a3 Bc5 14.Nc3 a6 15.Nd5=; 12...Rb6 13.Nc3 Be7 14.Qc1 Nb4 15.d4=) 13.Ne5 Rh6 14.Nc3 Re6 15.Nd5=.

11.Qb3 Rb8 12.Nc3 Rd6 (12...Nc3 13.Bc3 Bc3 14.Qc3 Rg6 15.d4=; 12...Bc3 13.dc3 Nf4 14.Bb5 a6 15.Rfd1=) 13.Nd5 Rd5 14.Bc4 Rd7 15.Nd4=.

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 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 a6 12.Qb3 Nb6 (12...Bc3 13.dc3 Nf4 14.ef4 Re2 15.Rfe1=+; 12...Nc3 13.Bc3 Bc3 14.dc3 Rb8 15.Rad1=) 13.d4 Bd6 14.d5 Na5 15.Qd1=+.

11.Nc3 Nb6 A) 12.d3 a6 (12...Qe7 13.Nb5 Bc5 14.Qc2 Nd5 15.Qc4=; 12...Rb8; 12...Rc8; 12...Qf6; 12...Re7; 12...Re8; 12...Bc5; 12...a5) 13.e4 Bg4 14.Ng5 Qg5 15.Bg4=+; B) 12.a3 Bd6 (12...Ba5 13.d3 Rg6 14.Rb1 Qe7 15.Qc2=; 12...Bc3 13.Bc3 Qd5 14.Rc1 Bd3 15.Bd3=; 12...Be7 13.d4 Na5 14.d5 Rd6 15.e4+=) 13.Nb5 Rh6 14.Nd6 Qd6 15.Rc1=.

11.Nc3 Rb8 12.Qb3 Rd6 (12...Nf6 13.Bc4 Re7 14.Nb5 Ne4 15.Na7=; 12...Nb6 13.Nb5 Bd6 14.d3 Rg6 15.Nd6=; 12...Nc3 13.Bc3 Bc3 14.Qc3 Qd6 15.d4=; 12...Bc3 13.dc3 Nf4 14.Bb5 a6 15.Rfd1=) 13.Nd5 Rd5 14.Bc4 Rd7 15.Nd4=.

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

11.Nc3 Nc3 12.Bc3 Bc3 (12...a5 13.a3 Bc3 14.dc3 Qf6 15.Qb3=; 12...Qd6 13.Qb3 a5 14.Qb2 a4 15.Bb4=; 12...Be4 13.Bb4 Nb4 14.d4 Qe7 15.Qb3=; 12...Rd6 13.Bb4 Nb4 14.d4 c5 15.Qa4=; 12...Qe7 13.Bb4 Qb4 14.d4 a6 15.a3=; 12...Re4 13.Rc1 Qd6 14.d4 Bc3 15.Rc3=; 12...Qf8 13.Bb4 Qb4 14.d4 Rd8 15.Bd3=) 13.dc3 Qf6 14.Qb3 b6 15.Nd4=.

11.Nc3 Rd6 12.a3?? Nc3–+ (12...Nc3 13.Bc3 Bc3–+) 0–1. forsetinn (2215) – marekt (2055), gameknot.com, 2014.

11.Nc3 Rd6 12.Nb5.

11.Nc3 Rd6 12.Nd5 Rd5 13.a3 Bd2 14.Bc4 Rd7 15.Nd2=.

11.Nc3 Rd6 12.Nd5 Rd5 13.d4=.

11.Nc3 Re7 A) 12.Bb5 Ne5 (12...Nc3; 12...Qd6; 12...Bg4) 13.Ne5 Re5 14.Qb3 Nc3 15.Qb4=; B) 12.a3 Ba5 (12...Nc3 13.Bc3 Bd6 14.d4 Qd7 15.Nh4=) 13.Qb3 Nb6 14.d4 Bc3 15.Qc3=.

11.Bc4 A) 11...Re7 A1) 12.Bb5 Na5 (12...Qd6 13.a3 Ba5 14.d3 Bg4 15.h3=) 13.a3 Bd6 14.Nc3 Nb6 15.Nd4=+; A2) 12.d3 Nb6 13.Bb5 Qd5 14.Na3 Be6 15.e4=; A3) 12.d4 Qd6 (12...Qd7 13.a3 Ba5 14.Qb3 Be4 15.Be2=; 12...Nb6 13.Bd3 Qd7 14.a3 Bd6 15.Bf5=; 12...Bg4 13.a3 Ba5 14.Bd3 h6 15.h3=; 12...Rb8 13.a3 Ba5 14.Qb3 Rd7 15.Nc3=; 12...Rc8 13.a3 Ba5 14.Qb3 Nb6 15.d5=; 12...a6 13.a3 Ba5 14.Qb3 Nb6 15.d5=; 12...Na5 13.Bd3 Qd7 14.Ne5 Ne3 15.fe3=) 13.a3 Ba5 14.Qb3 Rd8 15.Rc1=; A4) 12.Qc1 Nb6 13.Bb5 Bd3 14.Bc6 Bf1 15.Kf1=+; A5) 12.a3 Ba5 13.Nh4 Be6 14.Qf3 Qd7 15.Nf5=; B) 11...Rd6 12.a3 Ba5 13.Ne5 Qe8 14.Nc6 Qc6 15.Qb3=; C) 11...Na5 12.Be2 Rg6 (12...Bd6 13.Nd4 Rf6 14.f4 Be4 15.Nc3+=; 12...Re7 13.Nd4 Bg6 14.d3 Bd6 15.Nb5=; 12...Re8 13.Nc3 Nb6 14.d3 Nc6 15.a3=; 12...Bg6 13.Nc3 c6 14.Nd5 Qd5 15.d3=; 12...Bc5 13.Nc3 c6 14.Nd5 Qd5 15.d3=; 12...Qd7 13.Nd4 Re7 14.Nf5 Qf5 15.e4=; 12...Qd6 13.a3 Bc5 14.Nc3 a6 15.Nd5=; 12...Rb6 13.Nc3 Be7 14.Qc1 Nb4 15.d4=) 13.Ne5 Rh6 14.Nc3 Re6 15.Nd5=.

11.d3 Qe7 (11...Rg6 12.Kh1 Be6 13.a3 Be7 14.Nc3 a6 15.Qc2=; 11...a6; 11...Rb8; 11...Rc8; 11...Qd6) A) 12.Qc2 Bd6 (12...Nf4 13.Nc3 Bc3 14.Bc3 Re8 15.Rfe1=; 12...Re8; 12...Rd8; 12...Bc5; 12...a6; 12...Rc8; 12...Rb8) 13.Nc3 Ndb4 14.Qb3 Rh6 15.h3=+; B) 12.a3 Ba5 (12...Bd6 13.d4 Rg6 14.Qb3 Rd8 15.Re1=; 12...Bc5) 13.Qa4 Rd8 14.Rd1 Bb6 15.Bf1=+.

11.d4 a6 A) 12.Ba3 Ba3 (12...Bc3) 13.Na3 Nc3 14.Qe1 Ne2 15.Qe2–/+; B) 12.Bd3 Qf6 (12...Bd3 13.Qd3 Qd6 14.a3 Ba5 15.Bc3=) 13.a3 Ba5 14.Ne5 Bd3 15.Nd3=; C) 12.Nbd2 b5 (12...Re8 13.Rc1 Qe7 14.Nb3 Qe6 15.Nc5=; 12...Re7 13.Nc4 Re8 14.Rc1 Rb8 15.Bd3=; 12...Rc8 13.a3 Bc3 14.Qc1 Bd2 15.Qd2=; 12...Rb8 13.Rc1 Qe7 14.Nc4 Qf6 15.Nfe5=; 12...Ra7; 12...Bg6; 12...Qf6; 12...Qe7) 13.Rc1 Qe7 14.Nb3 Re3 15.fe3–/+; D) 12.a3 Be7 (12...Ba5 13.Qb3 Nce7 14.Ne5 Rb6 15.Qa2=; 12...Bf8 13.Bc4 Re8 14.Nc3 Nc3 15.Bc3=) 13.Nc3 Nc3 14.Bc3 Qd5 15.Bd3=; E) 12.Qb3 Na5 13.Qd1 Qf6 14.a3 Bd6 15.Nc3=.

11.d4 Rc8 12.a3 (12.Ba3) 12...Ba5 (12...Be7 13.Nc3 Rg6 14.Rc1 Bh3 15.Ne1=) 13.Qb3 Nce7 14.Ra2 a6 15.Rc1=.

11.d4 Be4 12.a3 (12.Nbd2; 12.Qc1; 12.Nfd2; 12.Bc4; 12.Qb3) 12...Be7 (12...Ba5 13.Qb3 Rb8 14.Nbd2 Bf5 15.Rac1=) 13.Qb3 Qd7 14.Nbd2 Bf5 15.Nc4=.

11.d4 Qe7 12.Bc4 (12.a3 Bd6 (12...Ba5) 13.Qb3 Rd8 14.Nc3 Nc3 15.Qc3=) 12...Be4 13.Nbd2 (13.a3 Ba5= 14.Nbd2 Bd2 15.Nd2=) 13...Na5 14.Ne4 (14.Be2 Bf5= 15.a3=) 14...Nc4=+ 15.Qb3 (15.Neg5=+) 15...Nb2 16.Qd5 Re4 17.Qb7 Re8 18.Ne5 (better 18.a3!? Bc3 19.Qb3=) 18...Re5–/+ 19.de5 a5 20.a3 Bc3 (worse 20...Ba3 21.Qb3 Bb4 22.f4+=) 21.Rab1 Qa3 (21...Qe5?! 22.Qc6 Re6 23.Qa8 Re8 24.Qc6=) 22.Qc6 Re5 (22...Kf8 23.Ra1 Qb4 24.Qc7–/+) 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 (31...g6 32.g4–/+) 32.Kg4 (32.g4 Re5–/+) 32...Re5 33.h4 Be1 (33...h5 34.Kf4–/+) 34.Qd6 Kg8 35.g3 (35.Qd8 Kf7 36.Qd7 Re7 37.Qd5 Kf8 38.Qd8 Re8 39.Qd6 Kg8=) 35...Re3 (35...h5 36.Kf4–/+) 36.Qb8 Kh7 (better 36...Kf7!?–/+) 37.Qb1= g6 38.h5 (38.Qb7!? Kg8 39.Qd5 Kg7 40.Qd7 Kf8 41.Qd6 Kf7 42.Qd5 Ke8 43.Kf4=) 38...f5=+ 39.Kh3 Re7 (39...Bb4!?–/+) 40.hg6 (40.g4 Kg8=) 40...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 (better 48...Re6!?=) 49.Qb7 (better 49.Qh6!? Rd6 50.Qe3 Kd7 51.g5+-) 49…Bc3?? (better 49...Bd2=) ½–½. Kohlmann,Helmut – Wegelin,Reinhard, CiF, 1985.

11.d4 Re7 12.a3 (12.Bb5) 12...Ba5 (12...Bd6 13.Nc3 Nc3 14.Bc3 Be4 15.Bd3=) 13.Qb3 Rb8 14.Nc3 Bc3 15.Bc3=.

11.d4 Nce7 12.Bc4 (12.Ba3; 12.Nbd2; 12.Qb3; 12.Bd3; 12.a3) 12...c6 (12...Rb8 13.Ba3 Ba3 14.Na3 a6 15.Rc1=; 12...a6 13.Ne5 b5 14.Bd5 Qd5 15.f3=; 12...Bg4 13.a3 Ba5 14.h3 Bh5 15.Be2=; 12...Qd6 13.Ne5 c6 14.a3 Ba5 15.Qh5=) 13.Ba3 Ba3 14.Na3 Qd6 15.Qb3=.

11.d4 Rg6 12.Bc4 Bh3 13.g3 Qd6 14.Ne5 Bf1 15.Qf1–+.

11.d4 Rg6 12.Nbd2=+ Qe7 (12...Bh3 13.Ne1 Be6 14.Bd3 Rh6 15.a3=; 12...Nc3 13.Bc3 Bc3 14.Rc1 Bb4 15.Re1=; 12...a5 13.Rc1 Bh3 14.Ne1 Qe7 15.Bd3=; 12...Qf6 13.Kh1 Re8 14.a3 Bd2 15.Qd2=; 12...a6 13.Rc1 Re6 14.a3 Bd6 15.Bc4=) 13.Bc4 Nc3 14.Bc3 Bc3 15.Rc1–/+.

11.d4 Rg6 12.Bd3 Bd3 13.Qd3 Qd7 (13...Qd6 14.g3=+) 14.g3 Qg4 (14...Re8 15.a3 Ba5 16.Nbd2=+) 15.Ne5= Ne5 16.de5 c6 17.Nc3 (better 17.Rd1!?=) 17...Qh3–/+ 18.f3 (18.Nd5 Rh6 19.Rfe1 Qh2 20.Kf1 Qh3 21.Ke2 Qg4 (21...cd5?! 22.Rh1 Qg4 23.f3 Qg3 24.Rh6 Qg2 25.Kd1–+; 21...Be1?! 22.Nf4 Qg4 23.Ke1=) 22.f3 Rh2 23.Kd1 Qf3 24.Kc1 cd5–+) 18...Bc3 19.Bc3 Rg3 20.hg3 Qg3 21.Kh1 Re8 22.Qd2 Nc3 23.Rac1 (23.Qc3?? Re6 24.Qc6 bc6 25.Rf2 Qf2 26.Rd1 Rh6) 23...Nd5 24.e4 Nf4 25.Qh2 Qh2 26.Kh2 Re5 27.Rfd1 g6 (27...g5 28.a4 Ne6 29.Rd7–/+) 28.Rc2 (28.Rb1 b6–/+) 28...Rb5 29.Rdd2 (29.Kg3 Ne6–/+) 29...Ne6 30.Rb2 (30.Rd7 Kg7–/+) 30...Rb2 31.Rb2 b6 32.Rb3 Nd4 (32...Kf8 33.Kg3–/+) 33.Ra3 a5 34.Rd3 c5 35.a4 Kf8 36.Kg3 (36.Kg2 Ke7–/+) 36...Ke7 37.f4 (37.Rd2 Kd7–/+) 37...Kd6 38.Rd1 (38.Kf2 Kc6 39.Rd1 h5–/+) 38...Kc6 39.Rh1 (39.Kg4 f5 40.ef5 gf5 (40...Nf5?! 41.Kf3–/+) 41.Kg5 Kd5–+) 39...h5–+ 40.f5? (better 40.Kf2–+) 40...gf5 41.ef5 b5 (41...Nf5 42.Kf4 Nd4 43.Rh5–+) 42.ab5 Kb5 43.Rb1 (43.Rh5 a4 44.Kf4 a3–+) 43...Kc6 44.Kf4 (44.Ra1 Nf5 45.Kf4 Nd6 46.Ra5 Kd5–/+) 44...a4 45.Rb2 (45.Re1 c4 46.Re3 Kb5–+) 45…h4 0–1. Domingo,Jordi (2085) – Riha,Josef (2050), FICGS, 2010.

11.d4 Rg6 12.Kh1 a6 (12...Rb8 13.a3 Bd6 14.Nc3 Nc3 15.Bc3=; 12...a5 13.a3 Be7 14.Nc3 Nc3 15.Bc3=; 12...Rd6 13.a3 Ba5 14.Nbd2 Bc3 15.Ra2=; 12...Qd6 13.a3 Ba5 14.Nbd2 Bd2 15.Qd2=; 12...Rc8 13.a3 Be7 14.Nc3 Nc3 15.Bc3=; 12...Rf6 13.a3 Ba5 14.Bd3 Bg4 15.Be4=; 12...Rh6 13.a3 Bd6 14.Nbd2 Re6 15.Rc1=) 13.a3 Be7 14.Nbd2 Re6 15.Ne5=.

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 (12...c5 13.Bb2 Qd6 14.d4 Rh6 15.h3-/+ -1.06) 13.Bg4 Rg6 (13...Bg4 14.Qg4 Ne2 15.Qe2 Qd4 16.Nc3 Bc3 17.dc3 Qc3 18.Rab1=+) 14.f3 (better 14.Bf5!? Qd5 15.f3 Rg2 16.Kh1 Qf5 17.ef4=) 14...Bd3-/+ 15.Re1 (better 15.Rf2!?-/+) 15...h5-+ 16.Bh5?? (16.Bc3 Ng2! 17.Kg2 hg4 18.fg4-+) 16…Rg2 (16...Rg2 17.Kh1 Rh2 18.Kh2 Qh4 19.Kg1 Qg3 20.Kh1 Qg2) 0-1. Hasler,Ulrich - NZZ, 1985.

11.a3 Bc5 12.Qb3 Rad8 13.Qb7 (13.Nc3 Na5 14.Qa4 Bb6=) 13...Qd6 14.Qa6 Rb8 15.Bc3 Qd7 (15...Rb6 16.Qc4 Be6 17.Qa4=) 16.Qc4= Bd6 17.Rc1 (17.Qd5?? Bh2 18.Kh2 Qd5–+) 17...Rb6 18.g3 (18.Qd5?? Bh2 19.Kh2 Qd5–+) 18...Be6 19.Qe4 (19.Qd3 h6=) 19...h6 (19...Be7 20.Ne5 Ne5 21.Be5=) 20.Bd3 f5 21.Qa4 Rd8 (21...Ne5 22.Qd7 Nf3 23.Kg2 Bd7 24.Kf3 Nc3 25.Nc3+= (worse 25.Rc3 Be5–/+)) 22.Bb5 a6 23.Be2 (23.Ba6?? Ra8–+) 23...Kh7 (23...Rdb8 24.Qc2=) 24.Qc2+= Nc3 25.Qc3 Bd5 26.d4 Rdb8 27.Nbd2 Qe6 28.Bc4 Ne7 29.Bd5 Qd5 30.Qc4 Rc6 31.Qd5 Rc1 (31...Nd5?? 32.Rc6 Ra8 33.Rcc1+-) 32.Rc1 Nd5 33.Nc4 Rb3 34.Nfd2 Rc3 35.Rc3 Nc3 36.Nd6 cd6 37.Nc4 d5 38.Nd6 Kg6 39.h3 Kf6 40.Kf1 g6 41.f3 a5 42.Nb7 a4 43.Nc5 g5 44.g4 h5 (44...f4 45.ef4 gf4 46.h4+-) 45.gh5+- Kg7 46.e4! fe4 (46...de4 47.fe4 Combination; 46...fe4 47.fe4 Combination) 47.fe4 de4 48.Na4 Nd5?? (48...Na4 49.d5 Nc5+-) 49.Nc5+- Kh6 (49...Ne3 50.Ke2 Nf5 51.d5 Ng3 52.Ke3 Nh5 53.a4+-) 50.a4 Kh5 51.a5 g4 (51...Nc3 52.a6 Nb5+-) 52.hg4 Kg4 (52...Kg5 53.a6 Nb6 54.a7 Kg4 55.d5+-) 53.a6 Nc7 54.a7 Kf5 55.Kf2 (better 55.Ke2 Kf6 56.Ke3+-) 55...Na8 (55...Kf6+-) 56.Ke3 Nc7 57.Nd7 Ke6 (57...Na8 58.d5 Kg6 59.d6+-) 58.Nb6 1–0. forsetinn (2235) – mistersmokey (2160), gameknot.com, 2014.

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 (19.d4!? Bd6 20.Rg1=+) 19...Qd6–/+ 20.Rg1 Qf6 21.Be5 Ne5 (21...Qe5?! 22.Nd2=+; 21...Re5?! 22.Nd2 Rd5 23.f4=+) 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 (13.a3 a5 (13...h6 14.Nc3 Nc3 15.Bc3 Bd5 16.Rab1 b6 17.Rb5 Qe6 18.Bd3 Bf3; 13...f6 14.Bd3 h6 15.Nh4 Bf7 16.Nc3 Qe5 17.f4 Qh5 18.Nf5 Nce7; 13...a6 14.h3 f6 15.d4 Qf7 16.Bd3 Qh5 17.Nc3 Nc3 18.Bc3 Bh3; 13...g6 14.Nc3 Rad8 15.d3 f6 16.Ne4 a6 17.h3 Bf5 18.Nd6 Rd6; 13...Rad8 14.Nc3 Nc3 15.Bc3 Bd5 16.Rfb1 Ne5 17.Nd4 Qh4 18.Nf5 Qe4) 14.h3 f6 15.d4 Qf7 16.Nc3 Nc3 17.Bc3 Bb3 18.Qb1 Bc4) 13...a6 (13...Ncb4 14.Qc1 Nc3 15.Qc3 f6 16.a3 Nd5 17.Qc2 c5 18.g3 Qf7; 13...Ndb4 14.Qb1 f6 15.Nb5 Rac8 16.a3 Nd5 17.g3 a6 18.Nd6 cd6; 13...f6 14.Bd3 h6 15.Bh7 Kh8 16.Nh4 Ncb4 17.Qb1 Qd8 18.Bg6 Rf8) 14.d4 (14.a3 Nc3 15.Bc3 Bd5 16.d3 f5 17.h3 b5 18.Rfe1 g6) 14...Ncb4 15.Qb1 (15.Qd2 Nc3 16.Bc3 Nd5 17.Bb2 Bf5 18.Ne5 f6) 15...Nc3 (15...f6 16.a3 Nc3 17.Bc3 Nd5 18.Bd2 c6) 16.Bc3 Nd5 (16...Bd5 17.Ne5 Nc6 18.Nc4 Bh2) 17.Bd2 Nb6 (17...Rab8 18.Bd3 Bg4= 0.14 (18...h6 19.e4=); 17...b6 18.Bd3 Bg4) 18.Rc1 (18.Bd3 Bd5) 18…Bd5. Engle,Lyle - Menten,Renaud (2000), Champions League, 2007.

11.Qb3 Nf4 12.Bb5 Ng2 (12...Na5!? 13.Qa4 c6 14.ef4 cb5 15.Qb5 Bd7=) 13.Kg2 (13.Bc6 Ne3 14.Be8 Nf1 15.Bf7 Qf7 16.Qf7 Kf7 17.Kf1 Re8+/-) 13...Qe4 (13...Be4 14.Be2 Qg5 15.Kh1 Qh5-/+) 14.Qc4?? (better 14.Rg1 Bg4 15.Be2+/-) 14...Bh3!!-+ 15.Kg3 (15.Kh3 Qf3) 15...Bd6 16.Be5 Be5 17.Ne5 Qg2 (17...Qe5?! 18.Kh3 Qa1 19.Bc6 bc6 20.Nc3-+) 18.Kh4 Ne5 (18...Ne5 19.Qe4 g5 20.Kh5 Qe4 21.Kg5 Nf3 22.Kh5 Qg6) 0-1. Dziel,Jaromir - Vicanek,Josef, 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 (12...a5 13.Qa4=+) 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 (22.Bd3 Be6 23.Qc7 Qb3=+) 22...Qb1 (22...Qa1 23.Rd1 Qa5 24.Qe3-/+) 23.Kf1=+ Be6 24.Qc7 a5 (24...Rc8 25.Qd6=+) 25.Qd6 (25.Rd6 Qb3 26.Ba6 Qc3 27.Qb7 Bc4 28.Bc4 Qc4 29.Nd3 Nd4=+) 25...Qb3 26.Qc5 h6 (26...Rc8 27.Bb5=+) 27.f4 (better 27.Nd3 Bc4 28.Nb2 Be2 29.Ke2=+) 27...Rc8 (better 27...Qb1!? 28.Qe3 a4=+) 28.f5+= Nb4 (28...Nb8!? 29.Qa5 Bd7+/-) 29.Qd6 Bc4? (better 29...Qc3 30.fe6 Qf6 31.Nf3 Qe6+-) 30.cb4+- Be2 (30...Qb4 31.Qb4 ab4 32.Rb2+-) 31.Ke2 (31.Re2 Qb4 32.Qb4 ab4+-) 31...a4 (31...Qc4 32.Ke3 ab4 33.f6+-) 32.Nd3 (32.Qd7 Qc4 33.Kf2 Qc7+-) 32...a3 (32...Qc4 33.Qd5+-) 33.Qd5 Qa4 (33...Qc4 34.Ra2 (34.Qb7?! a2 35.Qc8 Qc8 36.Ra2 Qc4 37.Ra8 Kh7+/-) 34...Qc7 35.e5+-) 34.e5 (34.Qb7 Ra8 35.Nc5 Qe8+-) 34...Ra8 (34...b6 35.e6 Qe8 36.Ra2+-) 35.Ra2 (35.Qb7?! a2 36.Ra2 Qa2 37.Ke3 Ra3=) 35...Qa7 36.Qc5 (36.e6!? fe6 37.fe6 Kh7+-) 36...b6 37.Qd6 Qb7 38.Ke3 (38.Kf1 Qe4 39.Qd7 Qc4+-) 38...Qc8 39.e6 (better 39.f6 Qe6 40.Qe6 fe6 41.fg7 Kg7 42.Ne1+-) 39...Kh8 (39...Qc4 40.Ra1 fe6 41.Qe6 Qe6 42.fe6+-) 40.b5 (better 40.ef7 Qf5 41.Rf2 Qg5 42.Nf4 Kh7+-) 40...Qc4 (40...fe6 41.fe6 (41.Qe6?! Qd8+-; 41.Ra3?! Ra3 42.Qa3 ef5+-) 41...Qe8 42.Qb6+- (42.Ra3?! Ra3 43.Qa3 Qe6 44.Kd4 Qd7 45.Kc4 Qc7 46.Kb3 Qf7 47.Kc3 Qc7 48.Kd2 Qh2+-)) 41.Ra3 Ra3 42.Qa3 fe6 43.Qa8 Kh7 44.Qc6 Qg4 (44...Qh4 45.fe6 Qd8 46.Qe4 Kh8 47.e7+-) 45.fe6 Qg5 (45...Qh4 46.Qb6 Qg5 47.Nf4 Qe5 48.Kf3+-) 46.Nf4 Qh4 (46...Qe5 47.Kf3 Kg8+-) 47.Qe4 Kg8 (47...Kh8 48.Ng6 Kh7 49.Nh4 Kg8 50.e7 Kf7 51.e8Q Kf6 52.Q8e7) 48.e7 (48.e7 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 (13...Be6 A) 14.dc5? Ne3 15.Qb3 Nc4-+ (15...Bc4?! 16.Qc3 Qf8 17.fe3 Bf1 18.Kf1=+); B) 14.Bb5 Bd6 15.e4+/-) 14.Nbd2 Bd6 15.Re1 (15.Bb5 Nd5=) 15...Ne4 (15...Na5 16.Qa4 Nc4 17.Nc4=+) 16.Ne4 (16.Bb5 Nd2 17.Nd2 Qh4=) 16...Be4 (16...Qe4? 17.Bf7 Kh8 18.Be8 Re8 19.Rc1+-) 17.d5 (17.Nd2 Na5=) 17...Ne5=+ 18.Be2 (18.Ne5 Be5 19.Be5 Qe5-/+) 18...Nf3-/+ 19.Bf3 Be5 (better 19...Bc5-/+) 20.Be4+= Bb2 21.Bh7 Kh8 (21...Kh7 Decoy theme: h7 22.Qb1 Theme: Double Attack) 22.Rb1 Bc3 (22...Qe5 23.f4 Qd5 24.Qd5 Rd5 25.Rb2 Kh7 26.Rb7+/-) 23.Qh5 Threatening mate: Be4 23...Qe5 24.Bf5 Kg8 25.Red1 (25.Qh7 Kf8 26.Rec1 Qd5+/-) 25...Rd6 (25...g6 26.Bg6 fg6 27.Qg6 Kf8 28.Qc2=) 26.Qh7 (26.Bh7 Kf8 27.Qe5 A) 27...Be5? 28.f4 Bf6 29.e4+- (worse 29.Rb7 Re3 30.Ra7 c6+/-); B) 27...Re5+/-) 26...Kf8+- 27.Qh8 (27.Rb7 Rh6 28.Qh6 gh6-+) 27...Ke7 28.Qh4 Kf8 29.Qh8 (better 29.Bh3 Rh6 30.Qa4+-) 29...Ke7= 30.Qh4 (better 30.Qh5!? g6 31.Qh4 Qf6 32.Qf6 Bf6 33.Be4+/-) ½-½. Lifshitz,Samuel - Auger,David G, 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 (14.Qb3!? Nb6 15.Rc1=+) 14...Nb6-/+ (14...ba6 15.Qc6 Qe6 16.Nd4+/-) 15.Qf4 Bb1 16.Bb7 Be4 17.Qg4 (17.Rec1!? Rd6 18.d3-/+) 17...f6 (17...f5 18.Qg3 Na7 19.Be4 fe4 20.Nd4-/+) 18.Bc6 Bc6 19.Nd4 Bd5 (19...Bd7 20.Qe2-+) 20.Nf5 Qd7 (better 20...Qf8!? 21.Rec1 Re4-+ (21...Bd2?! 22.Rc7 g6 23.Qh3=)) 21.Bf6=+ The pressure on g7 grows 21...Rb8?? (better 21...Bd2 22.Red1 Re4=) 22.Bg7+/- Do you see the mate threat? (22.Qg7?! Qg7 23.Ng7 Rf8=) 22...Kf7 23.Nh6 (23.Qh5 Kg8 24.Qg5+/-) 23...Ke7 24.Qg5 (24.e4 Bc4 25.Qg5 Kd6 26.Qa5 Bd3+-) 24...Kd6+/- 25.Rec1 (better 25.Rac1 Qd8 26.Bf6+/-) 25...c5?? (25...Qd8 26.Bf6 Qc8+/-) 26.Qg3 (26.d4 Nc4 27.Rc4+-) 26...Kc6 27.Rc5?? (better 27.d3+-) 27...Kc5-+ 28.Rc1 Kb5 29.e4 (29.d3-+) 29...Be4 30.Qg5 (30.d4 Rbc8 31.Rc8 Rc8-+) 30...Ka6 (better 30...Qd5 31.Qg3 Qd2-+) 31.Rc5 (31.d4-+) 31...Qd2 (31...Bd2 32.Qg4 Bh6 33.Rg5-+) 32.Qd2 Bd2 33.h4 Re7 34.Bf6 Nd7 (34...Re6 35.Be5 Rbe8 36.Ng4-+) 35.Be7 Nc5 36.Bc5 Rb5 (better 36...Rb1 37.Kh2 Bh6 38.f3-+) 37.Bf8 (37.Be3 Be3 38.fe3 Rb3-+) 37...Rh5 (better 37...Rb6!? 38.f3 Be3 39.Kh2 Bh6 40.Bh6 Rh6 41.fe4 Rh4 42.Kg1 Re4 43.Kf2-+) 38.Nf7 Rh4 39.Ne5 Bf4 40.Nd7 Ka5 (40...Kb5 41.Nc5 Bd5 42.Nd3-+) 41.Bb4 (41.Nc5 Bd5-+) 41...Kb5 42.Be7 Rg4 43.g3 Bg3 (better 43...Rg7!? 44.Nf6 Bf3 45.Bf8-+) 44.fg3 Rg3 45.Kf2 Rg7 46.a4 Kc6 47.Ne5 Kd5 48.Bf6 Rf7?? (better 48...Ra7-+) 49.Nf7+/- Ke6?? (better 49...Bc2+/-) 50.Ng5+- Kf6 (50...Kf5 51.a5 Bd5 52.Be7+-) 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 White prepares a7 68...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.

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.Qa4 Rad8 13.d3 (13.Bb5 Nb6 14.Qf4 Be4=) 13...Nb6 (13...Ne3 14.fe3 Qe3 15.Rf2-+) 14.Qc2= Qd6 15.Rd1 Re7 (15...Nd5 16.Nc3=) 16.Nc3 Red7 (16...Qe6 17.Ne4=) 17.Nb5 Qe7 18.Nbd4 Nd4 19.Nd4 Bg6? (19...Be6 20.Ne6 Qe6 21.d4+=) 20.Bf3?? (20.Nb3 Qg5 21.Nc5+- (21.Na5?! Qa5 22.Rac1 Bh5=)) 20...Nd5= 21.Nb3 Bb6 22.Qc4 Ne3 (22...c6 23.Kh1=) 23.fe3 Qe3 d3 becomes the focus of attention 24.Kh1 Rd3 25.Rd3 (25.Re1 Qf2 26.Be4 Be4 (26...Qb2? 27.Bd3 Qf6 28.Rad1+-) 27.Qe4 h6=+) 25...Rd3=+ (worse 25...Qd3 26.Qb4+=; worse 25...Bd3 26.Qc3 f6 27.Bb7+/-) 26.Bd4?? (better 26.Qh4 f6 27.Re1=+) 26...Bd4-+ (26...Rd4?! 27.Nd4 Bd4 28.Qc7=) 27.Nd4 Qd4 (27...Rd4?! 28.Qc7 h6 29.Qb7-+) 28.Qd4 Rd4 29.Bb7 c5 30.a4 (30.Rc1 c4 31.Kg1 Kf8-+) 30...c4 31.a5 (31.Re1 h6 32.a5 c3-+) 31...c3 32.Rc1 (32.Re1 h6 33.Bf3-+) 32...c2 33.Bf3 Rb4 34.Kg1 Rb1 35.Kf2 Rc1 (35...Rc1 36.Kg3 Ra1 37.Kg4 c1Q 38.Bd1 Qd1 39.Kf4 Ra3 40.Ke5 f6 41.Ke6 Re3) 0-1. norba94 (2300) - Nigel_Farage (2470), Rated Blitz game, lichess.org, 2016.

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 (13.Qb7? Rab8 14.Qa6 Rb2–+) 13...Rad8 (13...Be6 14.Ng5=) 14.Nc3 (14.Qb7?? Rb8 15.Qa6 Bc8–+) 14...Bc3 15.Bc3 Rd7 (15...Be6!?=) 16.Qb7+= Nc3 17.dc3 Be4 (17...Na5!? 18.Qb5 Nc4 19.Qf5 Red8+=) 18.Ng5+/- Bg6 (18...Qc5!? 19.Qb5 Qb5 20.Bb5 Re5 21.Ne4 Rb5+/-) 19.Bb5+- Nd8 20.Qf3 (20.Qa7 c6 21.Qb6 cb5 22.Qd6 Rd6–/+) 20...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.Qb3 Rad8 13.Nc3 Nc3 14.Bc3 Bc3 15.Qc3 Rd6 16.d4 Rg6 17.Rfc1 (17.d5 Bh3 18.Ne1 Bg2 19.Ng2 Qg5=+) 17...Be4=+ 18.Ne1 Qh4 (18...Qf6 19.Bd3 Qf5 20.Be4 Qe4 21.g3=) 19.g3?? (better 19.f3 Bf5 20.d5=) 19…Qh2!! (19...Qh2 20.Kh2 Rh6 21.Bh5 Rh5 22.Kg1 Rh1) 0-1. carlos78 (2195) - Larsan (2110), Rated Blitz game, lichess.org, 2015.

12.Bb5 Qc5 13.Nd4 Bd7 (13...Nd4 14.Be8 Nc2 15.Qf3=) 14.Bc6 Bc6 15.Nb3 (15.Qc1 Qc1 16.Rc1 Ne7=) 15...Qb5 16.Qc2 (16.d3!?=) 16...Nf4–/+ 17.f3 (17.ef4?? Qf1! 18.Kf1 Bb5 19.Qd3 Bd3 20.Kg1 Re1) 17...Bb6 18.Nc3 Qg5 19.g3 Rad8 20.Ne4 (better is 20.d4!? Nd5 21.e4 Nc3 22.Qc3–/+) 20...Qg6–+ 21.Nbc5? (better is 21.Qc4 Be4 22.fe4 Re4 23.Bd4–+) 21...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!

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 Do you see the mate threat? 14...Qh6 15.h3 Rad8 16.Bc4 (16.Rfc1 Re6 17.Bc4 Rg6=+) 16...Be4 17.Ne1 (17.Be2 Bd5=+) 17...Ne5 18.Ba2 (18.Be2 c5=+) 18...Nd3 19.f3 (19.Nd3 Bd3 20.Rfc1 Qg6=+) 19...Bf5 (19...Bg6 20.Nd3 Bd3 21.Rfc1=+) 20.Nd3 (20.Qb3 Re7-/+) 20...Bd3-/+ 21.Rfc1 Qg6 (21...c5 22.Bd5 Qg6 23.Bb7=+) 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), IECG, 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.Bb5 Ng2 14.Kg2 Be4 15.Rg1 Ne5 16.Be5 Qe5 17.Qc3?? (better 17.Be8 Re8 18.Qa4-+) 17...Qh2 (better 17...Qb5 18.d4 Re6-+) 18.Kf1+/- Qh3 19.Ke1 f6? (better 19...Qh6 20.Be8 Bf3+/-) 20.Qf6+- Re7 21.Bc4?? (better 21.Ne5! Bd5 22.Nc3+-) 21...Kh8-/+ 22.Ng5?? (better 22.Qh4 Qf3 23.Nc3-/+) 22...Qh2-+ (22...gf6 23.Nh3 Bf5 24.Bf1+-) 23.Nf7 (23.Nf3 Bf3 24.Qf3 Qg1 25.Bf1-+) 23...Rf7! 24.Qf7 (24.Bf7 Qg1 Mate attack; 24.Qf7 Qg1 Double attack) 24...Qg1 25.Ke2 Rf8 26.Qf8 Bf8 27.d3 (27.Nc3 Qa1 28.Ne4 Qe5-+) 27...Qg4 (better 27...Bc6 28.Be6-+) 28.Kd2 Bc6 29.Nc3 Qf3 30.d4 Qf2 31.Be2 g6 (better 31...Qg2-+) 32.Rf1 Qh4 33.Rf8 Kg7 34.Rf4 Qe7 35.Bc4 (35.d5 Qd6 36.Rd4 Bd7-+) 35...Qa3 36.Rf7 Kh6 37.Ne2 (37.Rc7 Be4! 38.Be2 Qb2 39.Ke1-+) 37...Qb4 (better 37...Qb2 38.Kd1 Qb4 39.Rc7 Qc4-+) 38.Kd1 (38.Kd3 Qb1 39.Kd2 Qb2 40.Kd1-+) 38...Qc4 (better 38...Ba4!? 39.Kc1 Qc4 40.Kd2 Qf7 41.Ke1-+) 39.Rf4 Qd3 40.Ke1 Qe3 41.Rh4 Kg5 (41...Kg7 42.Rh2-+) 42.Rh2 Bf3 43.Kf1 Be2 44.Re2 Qe2! 45.Ke2 Kf4 0-1. carlos78 (2320) - Kiselicki (2225), Rated Blitz game, lichess.org, 2015.

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 (13.Bb5!? Nh5 14.Nc3=) 13...Qe2=+ 14.Nc3 (14.Qb7 Qc4 15.Rc1 Rab8 16.Qb8 Qc1 (worse 16...Rb8 17.Rc4 Rb2 18.Nc3+/-) 17.Bc1 Rb8-/+) 14...Qd3 15.Rfe1 (15.Qb7 Ne7 16.Qb3 Rab8-/+) 15...Bf4 16.Qb7 Bd7 (16...Qd7 17.Qa6 Ne5 18.Ne5 Be5-/+) 17.Ne2 (17.Qb3!? Ne5 18.Ne5 Be5 19.Re3-/+) 17...Bd6 (17...Bd2 18.Nc1 Qd6 19.Re8 Re8 20.Qb3-+) 18.Ne5?? (better 18.Nc1 Bh2! 19.Kh2 Qd6 20.Be5 Ne5 21.Ne5 Re5 22.Re5 Qe5 23.Kg1-+) 18…Ne5 (18...Ne5 19.Be5 Be5-+; worse 18...Be5 19.Be5 Ne5 20.Ng3-+) 0-1. Papapostolou,Christos - Purdy,Cecil John Seddon, Siegen ol (Men) qual-A, 1970.

12.Nc3 Nf6 13.d4 Na5 (13...a6 14.d5 Ne5 15.Nd4=) 14.Nd2 (14.Nb5 Be4=) 14...c5 (14...c6 15.Nf3=+) 15.Nf3 (15.Nb5 cd4 16.Nd4 Bd7=) 15...cd4 (15...Rad8 16.Nb5=) 16.Qd4 (16.Nd4!? Bd7 17.Ncb5=) 16...Nb3=+ 17.Qh4? (17.Nd5 Qe6 18.Nf6 gf6 19.Qh4 Na1 20.Bc4+/-) 17...Na1-+ 18.Ra1 Bg6 (18...a6 19.Nd4 Bg6 20.Bf3-+) 19.Bb5 (19.Nb5!?-/+) 19...Red8-+ 20.Nd4 Qe5 (20...Rac8 21.Be2-+) 21.Nf3 Qc5 22.Ba4 Rac8 23.g3 (23.Ne2 Ne4-+) 23...a6 24.Ne2 Be7 25.Bd4 (25.Ned4 Qa5 26.Bb3 Rc5-+) 25...Qa5 26.Bb3 Qh5 (26...Bh5 27.Qg5 Qg5 28.Ng5 Be2 29.Nf7 Rd4 30.ed4-+) 27.Kg2 (27.Qh5 Bh5 28.Kg2 b5-+) 27...Qh4 (27...Qb5 28.Bd1-+) 28.Nh4 Be4 29.f3 Bd3 30.Kf2 g5 31.Ng2 Bc2 (31...b5 32.h3-+) 32.Ba2 (32.Bc2 Rc2 33.h4 g4-+) 32...Ba4 (32...g4 33.Bb1-+) 33.Ne1 g4 34.Bb1 gf3 35.Nf3 Ng4 36.Kg2 (36.Ke1 Bc2 37.Bc2 Rc2-+) 36...Bc2 (36...Bc5 37.e4-+) 37.Ba2 (37.a4 b5-+) 37...Bd3 38.Nc3? (38.Nf4 Rc2 39.Kg1-+) 38...Rd4! (38...Ba3?! 39.Bf7 Kf7 40.Ra3-+) 39.Nd4 (39.ed4 Ne3 Double attack (39...Rc3 Remove defender); 39.Nd4 Ne3 Double attack (39...Rc3 Remove defender)) 39...Rc3 40.Bd5 (40.Kf3 Nh2 41.Kg2-+) 40…Ne3 (40...Ne3 41.Kf3 Nd5-+) 0-1. Diadoco (2310) - craig4000 (2055), ChessWorld.net, 2017.

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 29...Rf8+-) 30.Ne7 (30.Nb4?! cb4 31.d7 Rf8 32.Rb4 Qe6 33.Qe6 fe6+-) 30...Kh7 31.Rd5 (31.Ba6 Qe6 32.Qe6 fe6+/-) 31...Rf8 32.Bd3 Rg8 33.Qf7 Rg7 34.Qe6 Rf8 (34...Bd2 35.Ng6 c4 36.Bf5 Qb1 37.Bb1+-) 35.Ng6 Qf2 36.Kh1 Qf7 37.Ne5 Kg8 38.Nf7 Rgf7 39.Rf1 Bc3 (39...c4 40.Rf7 Rf7 41.Bg6 Kh8 42.Qf7 Bd6 43.Qh7) 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.Bf1 Qg6 16.g3 Qh5 17.e4 Bg4 18.Bg2 Rbd8 19.Qc2 Nb8 (19...Rd7 20.d5 Ne5 21.Ne5 Be5 22.Be5 Re5 23.Rab1+=) 20.Nh4 (20.e5!? Be7 21.Qc7+=) 20...c6=+ 21.h3 Bc8 22.Bc3 Na6 23.Ndf3 f6 24.Bd2 Qf7 25.Bf1 g6 26.Reb1 (26.Ba6 ba6 27.g4 Nc4+=) 26...g5= 27.Nf5 Bf5 28.ef5 Nc7 29.a4 Rb8 30.h4 (better 30.a5!? Nbd5 31.a6+/-) 30…g4 1-0. AndyAndyO – marekt, ChessWorld.net, 2022.

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.

13.dc3 Rad8 14.Qb3 Be4 15.c4 (15.Qb7?? Rb8 16.Qa6 Rb6-+) 15...Ne5 16.Be5 Be5 17.Ne5 Qe5 18.Rad1 Qa5 19.g3 Bc6 20.Rd8 Rd8 21.Rd1 Rd1 22.Qd1 g6 23.Bf3 (23.Qd8 Kg7=) 23...Bf3 24.Qf3 c6 25.Qe4 (25.Qf4 Qa3 26.Qb8 Qf8 27.Qa7 b5=) 25...Qc5 (25...Qa3!? 26.Qe8 Qf8-/+) 26.a4 Qa5 27.Qe8 Kg7 28.Qb8 (28.Qd7 h5=) 28...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 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 Jose 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.Qa4 Ne5 15.Ne5 Be5 16.Be5 Qe5 17.d4 Qf6 18.Qa7 Be4 19.Rac1 Qg5 20.g3 h5? (20...Bc6 21.Qc5 Qf6 22.Rc3+=) 21.Rfd1 (better 21.Rc7!? h4 22.Qc5+-) 21...h4 22.Qc5 (22.Rc7 hg3 23.hg3 Qh6-+) 22...Qf6 23.Qc7 hg3 24.hg3?? (better 24.fg3 Qe6 25.Bc4+-) 24...Qh6-+ 25.f3 Qe3 26.Kg2 (26.Kh1 Bc6 27.Qf4 Qe2 28.Rd2 Bf3 29.Kg1 Qe3 30.Qe3 Re3 31.Rc5-+) 26…Qe2 (26...Qe2 27.Kg1 Qe3 28.Kh2 Qf2 29.Kh3 Bf5 30.g4 Qf3 31.Qg3 Bg4 32.Kh4 g5 33.Kg5 Qf5 34.Kh4 Qh5) 0-1. pacalmisu (2385) - Voat (2670), Rated Blitz game, lichess.org, 2016.

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.

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 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 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.

12.Bb5 Bg4 13.Nbd2? (better is 13.Bc6 bc6 14.h3=+) 13...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 (25...Ra4 26.Rb8 Kf7 27.f5–/+) 26.Kg2 (26.Ra7 Rf2 27.a4 Ra2=+) 26...Ra4–/+ 27.Rb2 Ra3 28.f3 Kf7 29.Kg3 g5 30.h4 (30.Kf2 Ke6–/+) 30...h6 (30...h5 31.hg5 fg5 32.Rc2–+) 31.hg5 (31.h5 f5–/+) 31...hg5 (32.Kf2 Ke6–/+) 0–1. Hromadka,K – Sauermann, corr ICCF WC, 1968.

12.Bc4 Bg4 13.Bd5 (13.a3 Ba5=+) 13...Rd5-/+ 14.h3 Bh5 15.Nc3 (15.a3 Bd6-/+) 15...Bc3 (15...Rd7 16.a3 Bc5 17.Qb3 Bf3 18.gf3 Qg5 19.Kh1-/+) 16.Bc3=+ Ne5 (better 16...Qe6=+) 17.e4?? (better 17.g4 Nf3 18.Qf3=) 17...Nf3-+ 18.Kh1 Qe4 19.g4 (19.Qb1 Qf4 20.g3-+) 19...Bg4! 20.hg4 Qg4 (20...Qg4 21.Qf3 Rh5 22.Qh3 Rh3) 0-1. Kirylo,Tadeusz - Bartnik,Tomasz, corr Poland, 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.

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 (14.Qb3 Nf4 15.Bd1 Na5+-) 14...Qf6 (14...Qd7 15.Nc4=+) 15.Qb3= Qh6 (15...Nb6 16.d5 Ne5 17.e4=) 16.g3 (16.Qb7 Rb8 17.Qa6 Rb2 18.Nc4-+) 16...Nb6=+ 17.Bf1 (17.Rac1 Be6 18.Qc2 Re7=+) 17...Be6 18.Qc2 Ne7 (18...Re7 19.e4 Qg6 20.Rac1+=) 19.Ne4 (19.e4 Qg6=+) 19...Bf5 20.Nd6?? (better 20.Bg2=) 20…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 (15...Be4 16.Nd6 Qd6 17.Nd2=+) 16.Nd6 (16.d5 Ne5 17.Be5 Be5=) 16...Rd6=+ 17.Kh1 (17.h3 Bh5=+) 17...Qe4 (17...Nd4 18.Bd4 Rd4–/+) 18.h3 (better is 18.Qd1=+) 18...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.

11.Qb3 Rb8 12.Nc3 Be6 13.Qc2 (13.Nd5 Bd5 14.Qc3 Bf6=) 13...Ndb4 (13...Ncb4 14.Qc1=+) 14.Qb1= Bf6 (14...a6 15.d3=) 15.d4 Nd5 (15...a6 16.a3 Nd5 17.Bd3=) 16.Bd3 g6 (16...h6 17.Rc1=) 17.Nd5+= Bd5 (17...Qd5 18.e4 Qd8 19.d5 Bb2 20.Qb2+=) 18.e4 Be6 19.d5 Bg4? (better is 19...Bb2 20.Qb2 Bg4=) 20.Bf6+- (20.dc6 Bb2 21.Qb2 Bf3=+) 20...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.Nc3 Ndb4 12.d4+= Bf6 13.Rc1 1-0. bollewillem (2265) - roy1nc6 (1830), gameknot.com, 2014.

11.Nc3 Nf6 12.Rc1 Bd3 13.Re1 h6 14.Nd4 Be2 15.Nce2 Nd4 16.Nd4 c5 17.Nb3 b6 18.d4 cd4 19.Nd4 (worse 19.ed4 Qd7=+) 19...Rc8 20.Qf3 Qd5 21.Nc6 Bc5 22.Na7 Qf3 23.gf3 Ra8 24.Nb5 Ra2 25.Bf6 gf6 26.Red1 Kg7 27.Nc3 Raa8 28.f4 Red8 29.Rd8 Rd8 30.Na4 Rd5 31.h3 Kg6 32.Kg2 f5 33.Nb6 Bb6 34.Rc6 f6 35.Rb6 Rd2 36.Ra6 Kf7 37.Kf3 Rb2 38.Ra7 Kg6 39.Re7 Rc2 40.Re6 Kf7 41.Ra6 Rb2 42.h4 Rc2 43.h5 Rb2 (better 43...Rc7!?+/-) 44.Ra7+- Kg8? (better 44...Ke6+-) 45.Ra5 Kf7 46.Rf5 Ke6 47.Ra5 Rb6 48.Kg4 Rb2 (48...Rb4 49.Ra6 Kf7 50.Ra7 Ke6 51.Rh7+-) 49.Ra6 Kf7 50.Ra7 Kg8 (50...Ke8 51.Kf5 Rf2 52.Kf6+-) 51.Kf5 1-0. zuri9 (2205) - keirak85 (2190), Team match, gameknot.com, 2022.

11.d4 a6 12.Nc3 =+.

11.d4 Ncb4 12.Na3 (12.Nc3 c6=+) 12...c6 (12...Qd6 13.Ne5=+) 13.Qd2 (13.Nc4 Bc2 14.Qd2 Be4=) 13...Nf6 14.Rfc1 Ne4 (14...Nbd5 15.Nc4=+) 15.Qd1 Qa5 (15...Nd5 16.Nc4=+) 16.Nc4= Qd8 17.Nce5 Be6 (17...Nd5 18.Bd3=) 18.a3 Nd5 19.Bd3 Nd6 (19...Ndf6 20.Qc2 Bd5 21.Rab1=) 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 (13...Qe6 14.Bd3 (14.Ncd2) A) 14...Rab8 15.Bf5 (15.Rc1; 15.a4; 15.a3) 15...Qf5 16.Qb3 a6 17.Ncd2 Nb6= -0.06; B) 14...Bd3 15.Qd3 Rad8 16.Rfc1 Rb8 17.Qc2 Be7= -0.03; C) 14...Rad8 15.Bf5 Qf5 16.Qb3 Rb8 17.Rfc1 Qe6= 0.06; D) 14...Ncb4 15.Bf5 (15.Bb1) 15...Qf5 16.Ba3 Nc2 17.Rc1 Na3= -0.03; E) 14...a6 15.Bf5 (15.a4) 15...Qf5 16.Rc1 Rab8 17.Ba3 Re6= -0.03; F) 14...Be4 15.Be4 Qe4 16.Qb3 Rab8 17.Rac1 Qg6= 0.09; G) 14...a5 15.Bf5 (15.Re1; 15.a4; 15.a3) 15...Qf5 16.Qb3 a4 17.Qb7 Ncb4=+ -0.28; 13...a6 14.Qb3 (14.Bd3) 14...b5 (14...Qe6 15.Nce5 b5 16.Nc6 Qc6 17.Rfc1 Qe6= 0.06) 15.Nce5 Be5 16.Qd5 Be4 17.Qb3 Bd6= -0.22) 14.Nce5 (14.d5 Bb2 15.Nb2 Ne2 16.Qe2 Nb4 17.d6 Qd6-/+ -1.03) 14...Qb4 (14...Be5 15.Ne5 Ne5 16.ef4-/+ Ng6 17.Bg4 Bg4-/+ -1.03) 15.ef4= Qb2 16.Bc4 (16.Bd3 Nd4 17.Rb1 Qc3= 0.06) 16...Be5 (16...Nd8 17.Bd3 Bd3= 0.12) 17.Ne5 Ne5 18.de5 b5 19.Qb3 (19.Qe2!? Qe2 20.Be2=) 19...Qb3-/+ 20.Bb3 (20.ab3? bc4 21.bc4 a5-+) 20...c5 21.Bd5 Rab8 (21...Rac8 22.Bb7 Rb8 23.Bf3-/+) 22.f3 Red8 23.Be4 (23.Rfd1 c4=+) 23...Be4-/+ 24.fe4 Rd4 25.Rae1 Re8 (25...c4 26.Kf2-/+) 26.Re2 b4 27.Rb1 a5 28.Kf2 c4 (28...c4 29.h4 Rc8-/+) 0-1. Myslinski,M - Kuntschke,Leopold, corr POL-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 (14...Bd7!?= 15.a3 (15.Qb3 Nb6 16.Ba3 Qe6 17.Qe6 fe6= 0.22) 15...Qe6 16.Bc4 Na5 17.Ba2 Bc8+= 0.53) 15.Bc6+/- bc6 16.Qc1 (16.Qb3 Rb8+= 17.e4 Qf8+/- 0.78) 16...Bd3+= 17.Ba3 (17.Nb3 Be4+= 0.69) 17...Qb5 18.e4 Nf4 19.e5 Be7 20.Be7 Re7 21.Qa3 Re6 (21...c5 22.dc5 Qc6 23.Qb4 (23.Qa7? Ra8 24.Qa8 Qa8-+) 23...Ne2 24.Kh1+=) 22.Nb3 (22.Qa7!? Rg6 23.g3+/-) 22...Rg6= 23.g3 Qd5 (23...Ne2 24.Kh1 Be4 25.Nbd2=) 24.Re3 Ne2 25.Kg2 Be4 26.Nbd2 (26.Qa7? Bf3 27.Kf1 Rh6-+) 26...Nf4 (26...Bf3 27.Nf3 Nd4 28.Rd3=) 27.Kf1 Qb5 (27...Bf3 28.Nf3 Ne6 29.Qb3=) 28.Kg1 Bf3 29.Nf3 (worse 29.Rf3 Ne2 (29...Rd4? 30.Rf4 Rf4 31.Rb1+-) 30.Kg2 Qd5-/+ (30...Rd4 31.Rb1 Rd2 32.Rb5 cb5 33.Qe7+-; 30...Nd4?! 31.Rd3-/+)) 29...a5 (29...c5 30.Qc5 Nh3 31.Kg2 Nf4 32.Kh1 Qc5 33.dc5+=) 30.Rb3 Qd5 31.Rab1 h5 (31...Ne2 32.Kg2 Rg4 33.h3+/-) 32.Rb8+= Rb8 33.Rb8 Kh7 34.Qb3 Qd7 (34...Rg4!? 35.Kf1 Ne6 36.Qd3 g6+=) 35.Kf1 Nd5 36.Rb5?? (36.Qb1 Qh3 37.Kg1+/-) 36...Nb6 (better 36...cb5 37.Kg1 a4-+) 37.Ra5+- Qh3 38.Ke2 (38.Kg1 Kg8+-) 38...Qf5? (better 38...Kg8+-) 39.Qd3 Qd3 40.Kd3 Kh6 41.Nh4 (41.h4 Re6+-) 41...Re6 42.Nf5 Kg6 43.Ne3 (43.Ne3 Kh7 44.f4+-) 1-0. Dupont,Gerhard - Porzig,Hermann, corr DDR-ch M781, 1985.

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.

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 Nb6 12.Nc3 (12.d4 Na5=) 12...Bd3 13.Nb5 Rc8 14.Bc3 (14.Re1 a6 15.Nbd4 Nd4 16.Nd4 Be2 17.Ne2 Nc4=+) 14...a6 (14...Be2 15.Qe2 a6 16.Nbd4 Nd4 17.Nd4=+) 15.Nbd4= Be2 (15...Nd4 16.Nd4 Be2 17.Ne2=) 16.Ne2 Qd3 17.Nf4 Qf5 18.Qb1 Qb1 19.Rfb1 Rb8 20.a4 a5 (20...Bd6 21.a5 Nd7 22.Nd3=) 21.Rb5+= Bb4 22.Bb4 ab4 23.d4 Nc4 (23...Red8!?+=) 24.d5+- Nd6 25.Rc5 (25.dc6 Nb5 26.ab5 b3+-) 25...Na5?? (better 25...Ne4 26.Rc4 Na5 27.Rb4 c5+-) 26.Ra5+- 1–0. Pierre – Litterman, internet, 2020.

11.a3 Nb6 12.d4 Na5 13.Nbd2 c6 14.Bc3 Nd5 15.Ba5 Qa5 Attacking the isolated pawn on a3 16.Qb3 Nb6 (16...Qb6 17.Qc4=+) 17.Nc4 Qa4 18.Qa4 Na4 19.Nh4 Be6 20.Rab1?? (20.Rfc1 Nb6=) 20...b6?? (better 20...Nc3!? 21.Bd3 Nb1 22.Rb1 Bc4 23.Bc4 b5-+) 21.Ne5? (21.Rbc1 a5=) 21...Rac8 (21...Nc3 22.Rbe1-+) 22.Nhf3? (22.Rbc1!? g5 23.Nhf3=) 22...Nc3 (22...f6 23.Nd3 Nc3 24.Rb2 Ba3 25.Rc2 Ne2 26.Re2-+) 23.Rb2 (23.Ba6 Nb1 24.Bc8 Rc8 25.Rb1 f6-/+) 23...Ne2 24.Re2 f6 25.Nd3 Bc4 26.Rd1 (26.Rd2 Ba3 27.Ra1 Bd6-+) 26...a5 (26...Ba3 27.Ree1 Bd6 28.Nb2-+) 27.Rb2-/+ b5 (better 27...Rb8-/+) 28.a4? (better 28.Nc5-/+) 28...ba4-+ 29.Nc5 (29.Rbb1 a3-+) 29...Bc5 30.dc5 Red8 (30...a3 31.Rb6 Rb8 32.Rc1-+) 31.Rc1 (better 31.Ra1 a3 32.Rc2-+) 31...Bb5?? (better 31...a3 32.Rb6 a2-+) 32.Nd4-/+ Rd4 (better 32...Rb8!?-/+) 33.ed4+= Rd8 34.Rd2 Kf7 35.f3 Ke6 36.Kf2 Kd5 37.Ke3 a3 (37...g5 38.Kf2=) 38.Rc3 Re8 39.Kf2 a4 40.Ra3 f5 41.g3 g5 42.h3 (42.Ra1 h6+=) 42...f4 43.gf4 gf4 44.Rda2 (44.Ra1 Re3=) 44...Kd4= 45.Ra4 Ba4 46.Ra4 Kc5 47.Rf4 Kb5 48.Rf7 Rh8 49.Rb7 Kc4 50.Ke3 c5 51.f4 h5 52.f5 Re8 53.Kf4 Kd3? (53...Rf8!?=) 54.Kg5 (54.f6 c4 55.Rd7 Kc3+-) 54...c4 (54...Rg8!? 55.Kh6 Rf8+=) 55.Rd7+- (55.Kh5?! c3 56.f6 Rh8 57.Kg6 Rg8 58.Kf5 Rc8=) 55...Ke4? (55...Ke2 56.f6 Rc8 57.Re7 Kd2+-) 56.f6 c3 (56...Rg8 57.Kh6 c3+-) 57.f7 (better 57.Re7 Re7 58.fe7+-) 57...Rf8 58.Kf6 (better 58.Rc7 Kd3 59.Kh5 c2+-) 58...c2?? (58...Rc8 59.Rc7! Rc7+-) 59.Rc7 Kd3 (59...Rb8 60.Kg7 Rb7 61.Rb7 c1Q+-) 60.Kg7 Ra8 61.f8Q Rf8 62.Kf8 Kd2 (62...h4 63.Ke7+-) 63.Kg7 c1Q 1-0. carlos78 (2235) - ttmzt (2120), Rated Blitz game, lichess.org, 2015.

11.a3 Qd7 12.Nc3 Nc3 13.Bc3 Bd3 14.Nd4 Be2 15.Ne2 (15.Qe2?? Nd4 16.Bd4 Qd4-+) 15...Rad8 16.Rb1 b6 17.Qa4 Ne5 18.Qd7 Rd7 19.Be5 (19.d4!? Ng4 20.g3=) 19...Re5-/+ 20.d4 Ra5 21.Rfc1 Ba3 22.Nc3?? (better 22.Rc6-/+) 22...Bc1-+ 23.Rc1 c5 0-1. pacalmisu (2395) - Varinius (2500), Rated Blitz game, lichess.org, 2016.

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 (12.Qb3 Nb6=) 12...a6 (12...Bd6 13.Nc3 Nc3 14.Bc3=) 13.Nbd2 (13.Nc3 Nc3 14.Bc3 Bd6=) 13...Nb6 (13...Bd6 14.Nc4=) 14.Nc4 (14.Qb3 Bd6=) 14...Nc4 15.Bc4 Bd6 (15...Qf6 16.Qb3=) 16.Bc3 (16.d5 Ne7=) 16...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.Nc3 Ncb4 12.Nd5 Qd5 13.Nd4 Bd3 14.a3 Be2 15.Qe2 c5 16.ab4 cd4 17.Ra5 Qd7 (17...d3 18.Rd5 de2 19.Re1 Bb4 20.Rb5=+) 18.Qd3 Bb4 19.Rb5 Be7 20.Qd4 Qd4 21.Bd4 b6 22.Ra1 Rec8 23.Kf1 f6 24.Ke2 Kf7 25.Rb2 Rcb8 26.Ra6 Bd8 27.g4 Ke6 28.h4 Kd7 29.Rba2 Rb7 30.f4 Kc6 31.Kf3 Kb5 32.e4 Be7 33.Bc3 Rd7 34.e5 (34.d4!?+=) 34...fe5= 35.fe5 Bc5 (better 35...Bh4 36.Ke4 g6=) 36.Ke4+/- Bf8 37.Bd4 (37.d4 Kc6+/-) 37...Rb7 38.Be3 Bb4 39.d4 Rc7 40.e6 Re8 41.Ke5 Bc3 (41...Rce7 42.d5 Bc3 43.Bd4+/-) 42.R6a3 (42.Ra7!? Rc5 43.Kf4 Rc4+-) 42...Rc5+/- 43.Kf4 Rc4 (43...Rcc8!? 44.d5 Rc4 45.Kg5 Rd8 46.Rb3 Bb4+/-) 44.Rb3+- Bb4 45.Ke5 (45.Ra7 Re6 46.Rg7 Ka4+-) 45...a5 46.d5 (better 46.Bd2+-) 46...Rg4+= 47.d6 Re4 (47...Rg6 48.e7 Kc6 49.Rc2 Kb7 50.Rb4 ab4+-) 48.Ke4+/- Re6 49.Kf3 Rd6 50.Rb1 Kc4 51.Rc2 (51.Rg2 g6+-) 51...Kd3+/- 52.Rc8 (better 52.Rg2!? Rf6 53.Bf4+/-) 52...Rf6= 53.Bf4 Bd2 54.Rd8 Kc2 55.Rd2 Kb1 56.Rd7 b5 (better 56...a4!?=) 57.Rg7+/- b4 (57...a4 58.Rh7 a3 59.Rb7+=) 58.Ke4 (58.Rh7!? Ra6 59.h5+/-) 58...Re6 59.Kd5 Re2 (59...Rf6 60.Bg5 Ra6 61.Kc4+= (61.Rh7?! a4=)) 60.Rh7 b3 61.Ra7 b2 (61...Ra2 62.Rb7 b2 63.Be5+-) 62.Be5 Rd2 (62...Kc1 63.Bb2! Kb2 64.Ra5+-) 63.Kc4 (better 63.Ke6!? Rg2 64.Bb2 (64.Ra5?! Rg4+/-) 64...Kb2 65.Ra5+-) 63...Re2+/- 64.Ra5 Re4 65.Kb3 (better 65.Kd3!? Rh4 66.Rb5+/-) 65...Re3= 66.Kc4 Re4 67.Kd3 Rh4 68.Rb5 Rh3 69.Kd2 Ka2 70.Rb2 (70.Bb2?! Rb3=) 70...Ka3 71.Rb8 Rb3 72.Ra8 Kb4 73.Bc3! Kc5 (73...Rc3 74.Rb8 Double attack (74.Rb8 Decoy)) 74.Kd3 Rb7 75.Rc8 Kd6 76.Kd4 Rf7 77.Ke4 Kd7 78.Rh8 Re7 79.Kd5 Rf7 80.Ra8 Rf5 81.Be5 Rf7 82.Ra6 Ke7 83.Rb6 Kd7 84.Bf6 Ke8 85.Ke5 Kd7 86.Kd5 Ke8 87.Re6 Kd7 88.Rd6 Kc7 89.Kc5 Kc8 90.Be5 Rc7 91.Kb6 Rb7 92.Ka6 Rd7 93.Rf6 Kd8 94.Bd6 Rh7 95.Kb6 Kd7 96.Bc5 Rh3 97.Rf7 Ke6 98.Re7 Kd5 99.Rd7 Ke6 100.Kc6 Rh2 101.Re7 Kf5 102.Kd5 Rd2 103.Bd4 Rg2 104.Rf7 Kg4 105.Ke4 Re2 106.Be3 Rg2 107.Rf6 Rg3 108.Bf2 Rg2 109.Rf8 Kh3 110.Kf3 Rg3 111.Ke2 (111.Bg3?!) 111...Rg6 112.Rf4 Rg4 113.Rf3 Kg2 114.Be3 Rg6 115.Rf1 Kh3 116.Kf3 Rg3 117.Ke4 Kg4 118.Rf8 Rg2 119.Bf2 Kh3 120.Kf3 (better 120.Bd4!?+/-) 120...Rg3= 121.Bg3 ½-½. Jacobson,Brandon (2500) - Wang,Justin (2430), St Louis Norm Congress GM, 2019.

11.Nc3 Ncb4 12.Nd5 Nd5 13.Qb3 c6 14.Rfc1 (14.Qb7? Rb8 15.Qa7 Rb2–+) 14...Qb6 15.Bc4 Qb3 16.ab3 Nb6 17.Bf1 a6 18.d4 Nd5 19.Ne5 Bd6 20.Nd3 Re7 21.Nc5 Rd8 22.h3 f6 23.Be2 Kf7 24.h4 g5 25.Bh5 Bg6 26.Bg6 Kg6 27.hg5 fg5 28.Nd3 g4 29.Ba3 Ba3 30.Ra3 g3 31.Ra2 (31.Ne5 Kf5=) 31...h6 (31...gf2 32.Rf2 Ne3 (worse 32...Re3 33.Ne5 Re5 34.de5+-) 33.Ne5 Kg7=+) 32.Ne5= Kg7 33.Rb2 h5 34.Re2 gf2 35.Kf2 Nf6 36.b4 Rg8 (36...Rd5 37.Kg3=) 37.Kg1 (37.e4 Kf8+=) 37...Rge8 38.Rd1 (38.e4!?=) 38...Kg8 (better 38...Nd5!?=+) 39.e4= ½–½. Gounant,Stanislas (1800) – Dusk,Jerzy (1800), FICGS, 2010.

11.d3 Qd7 12.Re1 Nb6 13.Qb3 Rad8 14.Ba3 (14.Rd1 Be6 15.Qc2 Nb4=+) 14...Be6 (14...Bd3!? 15.Rd1 Nd4 16.Nd4 Be2-/+) 15.Qb2=+ Na4 16.Qd2 (16.Qb7? Ba3 17.Na3 Rb8-+) 16...Nc5 17.d4 Ne4 18.Qb2 Ba3 19.Qa3 Bd5 20.Nfd2 Qf5 21.Ne4 (21.Bf3!?=) 21...Qe4-/+ (worse 21...Re4 22.Bd3 Qg5 23.Be4 Be4 24.g3+/-; worse 21...Be4 22.Nc3=) 22.Bf3 Qd4!? 23.Nc3 (23.ed4 Re1) 23...Qb4 24.Qb4 Nb4 25.Rab1 (better 25.a3 Nc2 26.Bd5=) 25...Bf3-/+ 26.gf3 (26.Rb4 Bc6-/+) 26...Nd3 (better 26...c5!?-+) 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 (49.Kc4 Kc7 50.Kd5 a3-/+) 49...a3 50.Nc4 Kc7 (50...b3 51.Na3 ba2 52.Nc2-/+) 51.h4 (51.Nd2!?-/+) 51...b3-+ 52.Na3 ba2 53.Nc2 Kb6 54.Kc4 Kc6 55.Kb3 Kd5 56.Ka2 Ke4 57.Kb3 Kd3 58.Na3? (58.Kb2-+) 58...Ke3 59.Kc4 Kf4 60.Kd5 Kg4 (60...Kg3 61.Nc4 Kh4 62.Kd6-+) 61.Kd6 (61.Nc4 Kh4 62.Kc6 f4-+) 61...Nf6 (better 61...f4 62.Kd7 f3 63.Nc4-+) 62.Kc5 Kh4 63.Kd4 Kg3 64.Nc4 Ng4 65.Kd5 f4 66.Ke4 Ne3 (66...g5 67.Nd2 Nf2 68.Kf5-+) 67.Ne5 (67.Nd2 g5-+) 67...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.

11.d4 Qd7 12.Nbd2 (12.Nc3 Bb4 13.Rc1 Bc3 14.Bc3 a5=) 12...h6 (12...Bb4 13.Rc1=) 13.Nc4 (13.Bb5 Qd6=) 13...Qe6 14.Nce5 (14.Nh4 Be4=+) 14...Rad8 (14...f6 15.Nd3=+) 15.Qb3 a6 (15...Be7 16.Rac1= (16.Qb7? Ne5 17.Ne5 Rb8 18.Qa7 Rb2–+)) 16.Rfc1 (16.Nh4 Ne5 17.Nf5 Nc6+=) 16...Na5 (16...f6 17.Nd3= (17.Qb7? Ne5 18.de5 Rb8 19.Qa6 Rb2–+)) 17.Qa4= b5 (17...Qb6 18.Ba3=) 18.Bb5 (worse 18.Qa5 Bb4 19.Rc6 Ba5 20.Re6 Re6–+) 18...ab5 19.Qa5 b4 20.Qa4 (20.Re1 Ra8 21.Qb5 Nf6=) 20...Nb6 21.Qb3 (21.Qb5 f6 22.Nc6 Rd5=) 21...f6 22.Nc4 (22.Nc6 Ra8 23.Nd2 Bd6=) 22...Nc4 23.Rc4 (23.Qc4 Qc4 24.Rc4 Bd6=) 23...Bd6 24.Rcc1 Be4 25.Qe6 Re6 26.Nd2 Bd5 27.a4 Ra8 28.a5 Ra6 29.Kf1 (29.Nc4 Bc4 30.Rc4 Re8=) 29...Re8 30.g3 (30.h4 Kf7=) 30...Rea8 (30...f5 31.Ke2=+) 31.e4= Bf7 32.e5 Bf8 33.Rc7 Ra5 34.Ra5 Ra5 35.ef6 Ra2 36.Bc1 b3 (36...gf6 37.Ne4 Bg7 38.Rc8 Kh7 39.Rc7=) 37.fg7 Bg7 (37...Kg7? 38.Nb3 Kg6 39.Rc6 Kh7 40.Nc5+-) 38.Rf7 Kf7 39.Nb3 Ke6 40.Be3 Kd5 The isolani on d4 becomes a target 41.Nd2 Ra6 (41...h5 42.Nf3+=) 42.Nf3+= Ke4 (42...Rf6 43.Nh4+=) 43.Kg2 Rf6 (43...Ra2 44.g4 Ra6 45.h4+=) 44.Nd2 (44.Ne5 Rf8+=) 44…Kd5 ½–½. Domingo,Jordi (1950) – Kirali,Hasan (1905), FICGS, 2010.

11.a3 Bf8 (11...Ba5 12.Qb3=+) 12.d4 (12.Nc3 Qd7=) 12...a6 13.Nbd2 Nb6 (13...Bd6 14.Nc4=) 14.Nc4 Nc4 15.Bc4 Na5 (15...Be4 16.Nd2 Bg6 17.Bc3=) 16.Ba2+= c5 (16...Bd6 17.Rc1=) 17.Ne5+- Be6 (17...c4 18.Qf3 Be6 19.Rfd1+-) 18.d5 Bc8? (better 18...Bf5!?+-) 19.Qh5+- Qf6 (19...Re5 20.Qe5 c4 21.Rad1+-) 20.d6! Be6 (20...Qd6 21.Qf7 Mate attack; 20...Bd6 21.Bf7 Double attack (21.Bf7 Discovered attack; 21.Qf7 Deflection; 21.Nf7 Decoy)) 21.d7 (21.d7 Reb8 22.Nc6 Qb2 23.Nb8 Rb8 24.Be6+-) 1–0. Niemann,Hans M (2250) – Huang,Andy (2175), USA Ch Cadet, 2017.

11.Qb3 a5 12.a3 a4 13.Qc4 Be7 14.Nc3 Nb6 15.Qf4 Bg6 16.Nb5 Rc8 17.Nfd4 (17.Qg3 Na5 18.h4 Bf8+=) 17...Bf6 (better 17...Nd5!? 18.Qg3 Bh4=+) 18.Nc6+= bc6 19.Bf6 Qd2 20.Bg4 cb5 21.Bc8 Nd5 (21...Rc8 22.Rfd1 Qe2 23.Be7+/-) 22.Qd4 Qd4 23.Bd4 Rc8 24.Rac1 b4 25.ab4 Nb4 26.Rc4 c5 27.Rc5 Ra8 28.Rfc1 a3 (28...a3 29.Rc8 Rc8 30.Rc8 Kh7+-). pacalmisu (2395) - ACFKC (2415), Rated Blitz game, lichess.org, 2016.

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.

11.Nc3 Nc3 12.Bc3 Ne5 (12...Be4 13.d3 Bf3 14.Bf3=) 13.Ne5 Be5 (worse 13...Re5 14.Be5 Be5 15.d4+-) 14.Be5 Re5 15.d4 Re6 16.Rc1 c6 17.Rc4 (17.Qb3 Qb6 18.Rc3 Rd8=) 17...Be4 (17...Qd5 18.Rb4=) 18.0-0= Bd5 19.Rc3 Qh4 20.Bf3 Rh6 (20...Rd8 21.Qe2=) 21.h3 Rd8 (21...Be6 22.Bg4=) 22.Bd5 Rd5 23.Qb3 Rd7 24.Rc5 Rg6 25.Re5 h5 26.Kh2 (26.Qc2 Re7+=) 26...Re7= 27.g3 Qf6 28.Rh5 Qf3 29.g4 Qe2 30.Qb1 Re3 31.Qb7 Rge6 32.Kg1 (32.Qa7?? Qf1 33.fe3 Qf2 34.Kh1 Qf3 35.Kh2 Qe2 36.Kh1 Re3 37.Qb8 Re8 38.Qe8 Qe8–+) 32...Rf3 (32...R3e4!? 33.Qc8 Re8=) 33.Qa7+- Rh6 (33...Qe4 34.Qd7 f5 35.Qd8 Kf7 36.Rf5 Rf5 37.gf5 Qf5 38.Qc7 Kg8 39.Kh2+=) 34.Qb8 Kh7 35.Rh6 gh6 36.Kg2 Ra3 37.Qf4 Qe6 (37...Kg7 38.Rc1 Qd3 39.f3+- (worse 39.Rc6 Qh3 40.Kg1 Ra1 41.Rc1 Rc1 42.Qc1 Qg4 43.Kh2 Qd4–/+)) 38.Re1! Qd5 (38...Qe1 39.Qf7 Combination) 39.f3 Qd7 (39...Ra4!? 40.Re5 Qd7+-) 40.Qf6+- Ra2 (40...Qc7+-) 41.Kg3 Ra7 42.Kh4 Rb7 43.f4 Ra7 (43...Qc8+-) 44.Re5 (44.Re5 Kg8 45.Qh6 Qd8 46.Rg5 Qg5 47.Kg5+-) 1–0. rossray (2020) – arthur1999 (2035), gameknot.com, 2011.

11.Nc3 Be7 12.0-0=.

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.

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.