MCC Lesson 1999 December - John Chamberlain

Position after:

(1) Zaichek - Mikhalchishin 1...c5? 2.Nd6 Bd4 Note that after 2...a5 3. a4 the a5 pawn is more of a weakness than the b3 pawn because the b3 pawn can be defended laterally and the king is there also. 3.f3 Rb6 4.Nc4 Re6 5.Rhe1 Rfe8 6.Rxe6 Rxe6 7.Kd3 Bg7 8.Rc1 h5 9.Rc2 Re1 10.Na5 a6 11.Nb7 Re6 12.Kc4 f5 13.Nxc5 Rd6 14.b4 g5 15.a4 g4 16.b5 Rd4+ 17.Kb3 axb5 18.axb5 Rd1 19.Ne6 Bf6 20.f4 Rb1+ 21.Kc4 Be7 22.Nc5 h4 23.Nd3 Bd6 24.Kd5 Bb8 25.Kc6 Rh1 26.Kb7 Bd6 27.b6 Rxh2 28.Rc7+ Kg8 29.Kc6 h3 30.Kxd6 hxg2 31.Rc1 Rh6+ 32.Ke5 Rxb6 33.Kxf5 Rb3 34.Ne5 Rg3 35.Kg6 *

Position after:

(2) Fischer,R - Euwe,M [B13] Leipzig Olympiad 1960 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 Nc6 6.Nf3 Bg4 7.cxd5 Nxd5 8.Qb3 Bxf3 9.gxf3 e6 10.Qxb7 Nxd4 11.Bb5+ Nxb5 12.Qc6+ Ke7 13.Qxb5 Nxc3 14.bxc3 Qd7 15.Rb1! Fischer writes, "The innovation. Months before the I had showed this line to Benko and he suggested this innocent-looking move. Upon looking deeper I found that, horrible as White's pawn structure may be, Black can't exploit it because he'll be unable to develop his K-side normally. It's little quirks like this that could life difficult for a chess machine." 15...Rd8 16.Be3 Qxb5 17.Rxb5 Rd7 18.Ke2 f6 19.Rd1 Rxd1 20.Kxd1 Kd7 21.Rb8 Kc6 22.Bxa7 g5 23.a4 Bg7 24.Rb6+ Kd5 25.Rb7 Bf8 26.Rb8 Bg7 27.Rb5+ Kc6 28.Rb6+ Kd5 29.a5 f5 30.Bb8 Rc8 31.a6 Rxc3 32.Rb5+ Kc4 33.Rb7 Bd4 34.Rc7+ Kd3 35.Rxc3+ Kxc3 36.Be5! 1-0

Position after:

(3) Gligoric,S - Fischer,R [B99] JUG ct Belgrade (25), 1959 [jsc] 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.0-0-0 Nbd7 10.g4 b5 11.Bxf6 [11.Bg2 Bb7 12.Rhe1 b4 13.Nd5!? exd5 14.exd5 Kf8 15.Nf5 Re8 Bernstein,S-Fischer,R ch-USA 1957 0-1] 11...gxf6!? [11...Nxf6 Walther,E-Fischer,R Zürich 1959] 12.f5 [12.Bg2 Bb7 13.Rhe1 0-0-0 14.a3 Nb6= Gligoric,S-Fischer,R Zürich 1959; 12.a3 Bb7 (12...Rb8÷) 13.f5 e5 14.Nde2 Nb6 15.Nd5 Bxd5 16.exd5 Rc8 17.Nc3 Nc4 18.Bxc4 bxc4 19.Kb1 Rb8 20.Ka2± Mednis,E-Fischer,R/USA-ch/1959/; 12.Bd3 Bb7 13.Kb1 Nc5 14.f5 b4 15.Nce2 d5 16.fxe6 dxe4 17.exf7+ Kf8 18.Bxe4 Bxe4 19.Qxe4 Nxe4 20.Ne6+ Kxf7 21.Nxc7 Ra7= Padevsky,N-Evans,L Habana ol 1966] 12...Ne5 [12...b4 13.fxe6 bxc3 (13...Ne5 14.Nd5!) 14.exd7+ Bxd7 15.e5± Smagin,V] 13.Qh3 0-0! [13...Bd7 14.g5! fxg5 (14...exf5 15.Nd5) 15.fxe6 fxe6 16.Nxe6+-] 14.Nce2 [14.Qh6 Kh8 15.g5 !, +- Smagin,V 15...Rg8! 16.g6 (16.gxf6 Ng4µ) 16...fxg6 17.Nxe6 (17.fxe6 Bb7) 17...Bxe6 18.fxe6 Rac8 19.Qd2 (19.a3 d5! 20.exd5 Bxa3) 19...Nc4 20.Bxc4 (20.Qd4 Qa5) 20...Qxc4 21.Qd5 Rge8µ … Bf8; b5-b4; 14.g5!? b4? (14...fxg5! 15.fxe6 fxe6 16.Nxe6 Qd7 17.Nd5 Qxe6 18.Qxe6+ Bxe6 19.Nxe7+ Kf7 20.Nf5= Kholmov,R) 15.gxf6 Bxf6 16.Rg1+ Kh8 17.Qh6 Qe7 18.Nc6!! Nxc6 19.e5!! Kholmov,R-Bronstein,D ch-URS 1964 1-0] 14...Kh8 [14...Qb7; 14...Bd7 15.Nf4 Qc8 16.Qh6 Kh8 17.Nh5 Rg8 18.Nxf6 Rg7 19.Be2 Qd8 20.g5±] 15.Nf4 Rg8 16.Rg1 [16.Be2 Gligoric,S 16...Qb7 17.fxe6 fxe6; 16.fxe6 fxe6 17.Ndxe6 Bxe6 (17...Qa5; 17...Qb7) 18.Nxe6 Qc8=] 16...d5! [16...Qb7 17.Re1 Qb6!] 17.fxe6 [17.exd5? exf5!] 17...dxe4 18.Nd5 Qc5 19.Nxe7 [19.exf7 Nxf7 20.Nxe7 Qxe7=; 19.Nf5! A) 19...Qxg1 20.Nfxe7 Bxe6 (20...Qxg4 21.Qxg4 Rxg4 22.Nc7 Rb8 23.Rd8+ Kg7 24.Nf5+ Kg6 25.e7+-) 21.Nxg8 (21.Nxf6 Rg7) 21...Bxg4 22.Qh6 Bxd1 23.Ngxf6 Qg6 24.Qxg6 hxg6 25.Kxd1 ± / +-; B) 19...Bd8 20.Qh6! (20.Rg3 fxe6; 20.e7 Bxf5 21.exd8Q Raxd8) 20...Rg6 21.Nf4! Nd3+ 22.Rxd3+-] 19...Qxe7 20.Nf5 [20.Qe3 Bb7 21.exf7 Qxf7] 20...Qxe6 21.Qh6 [21.Rd6? Qxa2 22.Qh6 Qa1+ (22...Bxf5 23.Qxf6+ Rg7 24.Rd8+=) 23.Kd2 Nf3+ 24.Ke3 (24.Ke2?? Qe1#; 24.Kc3? Qa5+ 25.Kb3 Qa4+ 26.Kc3 b4+ 27.Kc4 Be6+-+) 24...Qxb2!-+] 21...Bd7! [21...Nxg4? 22.Rxg4 Rxg4 23.Rd8+ Rg8 24.Qg7#] 22.Rd6 [22.Kb1 Nxg4] 22...Nxg4! 23.Rxg4™ [23.Rxe6? Nxh6-+] 23...Qxf5 24.Rxg8+? [¹24.Rf4 Qg5 25.Qxf6+ Qxf6 26.Rdxf6 e3! 27.Rxf7 Rg1! 28.Rxd7 e2 29.Rd1! exd1Q+ 30.Kxd1 Kg7 31.Ke1 Rf8 32.Rxf8 Kxf8 33.Kf2=] 24...Rxg8? [24...Kxg8! 25.Rxf6 Qe5-+ 26.Rxa6? Rxa6 27.Qxa6 Qf4+-+] 25.Rxf6 Qd5 26.Rd6 Qf5 [26...Qb7? 27.Qf6+ Rg7 28.Qd8+ Rg8 29.Qxd7+-] 27.Rf6 Qg5+ [¹27...Qd5 28.Rd6=] 28.Qxg5 Rxg5 29.Rxf7 Bg4 30.Kd2 Bf3 31.Ke3 Rg1 32.Bh3 [32.Kf2? Rh1] 32...Re1+ 33.Kf4 Bd1 34.Ke5! [34.Re7 Bxc2 35.Bf5=] 34...e3 35.Bf5 Rg1 36.Rxh7+ Kg8 37.Rc7 Bg4? [¹37...e2 38.Kf6 Kh8 39.Rh7+ Kg8 40.Rc7 Kh8=] 38.Bxg4 Rxg4 39.Rc3 e2 40.Re3 Rg2 [40...Rg7? 41.Kd4] 41.Kd4 e1Q! [41...Rxh2? 42.Kd3+-] 42.Rxe1 Rxc2 43.Rb1 Kf7! [43...Rxh2? 44.Kc5+-] 44.a3 Ke6 45.b3 [45.h4 Kd6=] 45...Rxh2 46.Kc5 Kd7 47.Kb6 Ra2 48.Kxa6 Rxa3+ 49.Kb7 [49.Kxb5 Kc7=] 49...Kd6 [¹49...b4 50.Rd1+ (50.Kb6 Kc8=) 50...Ke6 51.Rd3 Ke5 52.Kb6 Ke4 53.Rh3 Kd4 54.Kb5 Ra8 55.Kxb4 Rb8+ 56.Ka5 Ra8+ 57.Kb6 Rb8+ 58.Kc6 (58.Ka6 Kc5=) 58...Rb4 59.Rg3 Rb8=] 50.Kb6 Kd7 51.b4 Rh3 52.Rc1 Rh8? [¹52...Rh5 53.Rc5 Rxc5 54.Kxc5 Kc7 55.Kxb5 Kb7=] 53.Kxb5? Here Gligoric could have won. Fischer's comment was: "Now it's Gligorich's turn to let me out. As Olafsson showed me, White can win with 53 R-B7+! It's hard to believe. I stayed up all night analyzing, finally convincing myself and, incidentally, learning a lot about Rook and Pawn endings in the process." [53.Rc7+! Kd6 (53...Kd8 54.Rc5 Kd7 55.Kb7! Kd6 56.Rxb5+-) 54.Rc6+ Kd7 (54...Kd5 55.Kxb5 Rb8+ 56.Rb6+-) 55.Kxb5 Rb8+ (55...Rh4 56.Rc1 Rh8 57.Ka6+-) 56.Rb6 Rh8 57.Rb7+ Kc8 58.Ka6 Rh6+ 59.Ka7+-] 53...Rb8+ 54.Ka4 Ra8+ 55.Kb3 Rc8 56.Rxc8 Kxc8 57.Kc4 Kb8! [57...Kb8! 58.Kc5 (58.Kd5 Kb7=) 58...Kc7 59.Kb5 Kb7=] 1/2-1/2

Position after:

(4) Chamberlain,J (1991) - Cekrezi,A (1907) [B06] Pillsbury Memorial 1999 (2), 04.12.1999 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nd7 5.Nf3 c6 6.Bc4 Nb6 7.Be2 Bg4 8.0-0 Nf6 9.e5 dxe5 10.dxe5 Qxd1 11.Nxd1 Nfd5 12.Nf2 Bxf3 13.Bxf3 0-0-0 14.c3 f5 15.Be2 e6 16.a3 Bf8 17.c4 Nc7 18.Be3 Be7 19.b4 Kb8 20.Rfc1 Rd7 21.Nd3 Rhd8 22.Nc5 Bxc5 23.Bxc5 Ne8 24.Be3 Na4 25.Ra2 Nc7 In this position White has some forceful options like b5 or Bf2-h4, but since Black has no play I will just slowly improve my position and wait to see if he wants to make any bad moves ... 26.Kf2 Nb6? 27.Rac2 Nc8? 28.a4 b6? 29.Rb1 Ne7 30.Ra2 Na8? 31.Rba1 Rb7 32.a5+- After four totally unforced errors White can win by opening the a-file. Black has just needlessly backpedaled into a losing position. 32...Rdd7 33.axb6 Nxb6 34.Bc5 Nbc8 35.Ke3 h6 36.g3 Nb6 37.Ra6 Nec8 38.Rc1 Rdc7 39.Bf3 Nd7 40.Bd6 Nxd6 41.exd6 Rc8 42.Bxc6 1-0

Position after:

(5) luft example 1.h6? Bf6 2.Rhg1 Rg8 3.Qh5 Rg6 4.Rxg6 hxg6 5.Qg4 Kh7 6.Rf1 Re8 7.Rh1 Qe6 8.Qg3 Be7 9.Kb1 *

Position after:

(6) Fischer,R - Benko,P [B09] USA Championship 1964 1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.f4 Nf6 5.Nf3 0-0 6.Bd3 Bg4 7.h3 Bxf3 8.Qxf3 Nc6 9.Be3 e5 10.dxe5 dxe5 11.f5 gxf5 12.Qxf5 In this position Black has two possible plans: play defensively by moving the QN over to the kingside, c6, and Qd7-e6; or play more actively with Nd4 and f5, opening up the position. 12...Nd4 Benko choses the active plan (at first!). 13.Qf2 Ne8 14.0-0 Nd6 15.Qg3 Kh8 16.Qg4 c6? But, now he falters plays a move from the defensive plan. c5! was in order. 17.Qh5 Qe8? Benko is still mixing metaphors: now he switching back to the active plan, eyeing f5, but Ne6 was now the only move. 18.Bxd4 exd4 19.Rf6! Kg8 20.e5 h6 21.Ne2 1-0

Position after:

(7) Fischer,R - Shocron,R [C97] Mar del Plata Mar del Plata, 1959 [Shipov] 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d6 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 12.Nbd2 Bd7 13.Nf1 Rfe8 14.Ne3 g6 15.dxe5 [15.Bd2] 15...dxe5 16.Nh2 Rad8 17.Qf3 Be6 18.Nhg4 Nxg4 19.hxg4 [19.Nxg4 Bxg4! 20.hxg4 c4=] 19...Qc6?! [19...Nc4! 20.Nd5 Bxd5 21.exd5 Nb6 22.Rd1 Rd6 23.a4 Red8 24.axb5 axb5 25.Be3 c4= Keres,P-Matanovic,A/Bled/1961/0,5/83/] 20.g5 [¹20.Qg3! f6 (20...Qc7 21.Nf5!‚; 20...Bf6 21.g5 Bg7 22.Qh4‚) 21.g5 Kh8 22.b3 Rf8 23.Nd5! Bxd5 24.exd5 Qxd5 25.gxf6 Bxf6 26.Bh6± Boleslavsky,I-Tal,M/Tbilisi/1957/1:0/93/] 20...Nc4 [20...Bxg5 21.Nd5! Bxc1 (21...Bxd5? 22.Bxg5±) 22.Nf6+ Kh8! 23.Raxc1 (23.Nxe8 Bg5 24.Nf6 Nc4©) 23...Rf8 (23...Re7 24.Qg3 Qc7 25.Qh4ƒ) 24.Qg3 Qc7÷ 25.Qg5 Kg7=] 21.Ng4 Bxg4™ 22.Qxg4 Nb6! [22...f6? 23.gxf6 Bxf6 24.a4 Nb6 25.axb5 axb5 26.Be3±] 23.g3 c4 [23...Nd7 24.a4 c4! (24...b4? 25.cxb4 cxb4 26.Bb3±) 25.axb5 axb5=] 24.Kg2 Nd7= 25.Rh1 Nf8 26.b4! [26.b3 b4! 27.cxb4 c3!©; 26.a4 b4! 27.cxb4 Bxb4 28.a5 Qc7=] 26...Qe6 [26...cxb3?! 27.Bxb3 Qxc3 28.Be3ƒ × c7/; 26...a5!? 27.a3 Ra8=] 27.Qe2 a5! 28.bxa5 Qa6 29.Be3 Qxa5 30.a4 Ra8 [30...Qxc3 31.axb5=] 31.axb5 Qxb5 [31...Qxa1? 32.Rxa1 Rxa1 33.Qxc4±; 31...Qxc3!?] 32.Rhb1 Qc6 33.Rb6! Qc7 34.Rba6 Rxa6 35.Rxa6² × c4/ 35...Rc8 36.Qg4 Ne6 [36...Bc5?! 37.Bxc5 Qxc5 38.Ba4!±] 37.Ba4 Rb8 38.Rc6 Qd8? [38...Qd7!! 39.Kh2 (39.Rxc4? Qd3! 40.Rc6 Rb1µ) 39...Rb1! 40.Rb6 (40.Rxc4 Qd3 41.Rc8+ Kg7 42.Qh4 Bxg5! 43.Bxg5 Rh1+! 44.Kxh1 Qf1+ 45.Kh2 Qxf2+=) 40...Qd3 41.Rxb1 Qxb1 42.Bd7 Nc7 43.Bc6 Qd3²] 39.Rxe6! Qc8 [39...fxe6 40.Qxe6+ Kf8 41.Qxe5+-] 40.Bd7!+- [40.Bd7! Qxd7 41.Rxg6++-] 1-0

Position after:

(8) Fischer,R - Darga,K [C19] West Berlin 1960 [jsc] 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.a4 Qc7 8.Nf3 b6 9.Bb5+ Bd7 10.Bd3 Nbc6 11.0-0 c4 [Fischer claims white is winning after 11...0-0 12.Bxh7+ Kxh7 13.Ng5+ but unclear is 13...Kg6! ] 12.Be2 f6 13.Ba3 fxe5 14.dxe5 Nxe5 15.Re1 N7c6 16.Nxe5 Nxe5 17.f4 Nc6 18.Bg4 0-0-0 19.Bxe6 Bxe6 20.Rxe6 Rd7 21.f5 Nd8 22.Re3 Qf4 23.Rf3 Qe4 24.a5 Nc6? [24...b5=] 25.axb6 axb6 26.Qb1 Kc7 27.Bc1! Qe1+ 28.Rf1 Qxc3 29.Bf4+ Kb7 30.Qb5 there is no defence to Qa6 1-0

Position after:

(9) Polgar #1179 1.Re4+ Kxe4 2.Re6# *

Position after:

(10) Timman,J (2590) - Leko,P (2630) [B17] Koop Tjuchem Groningen (1), 1996 [Ftacnik] 1.e4 Petursson 1...c6 2.d4 d5 3.Nd2 dxe4 4.Nxe4 Nd7 5.Bd3 Ngf6 6.Ng5 e6 7.N1f3 Bd6 8.Qe2 h6 9.Ne4 Nxe4 10.Qxe4 Nf6 11.Qe2 Qc7 12.Bd2 b6 13.0-0-0 Bb7 14.Kb1 Rd8 15.Rhg1 [15.Rhe1 0-0 A) 16.g4 Bf4 17.Ne5 Rxd4 18.Bxf4 Rxf4 19.h4? (19.Qe3 Nd5; 19.Qd2!?) 19...c5 20.Qd2 Rd4 21.c3 (21.g5? Ne4) 21...Rd5 22.Qe2? (22.g5) 22...Rxe5! 23.Qxe5 Qxe5 24.Rxe5 Nxg4 25.Ree1 Nxf2 26.Rd2 Nxd3 27.Rxd3 Bd5-+ 0-1 Adams,M-Speelman,J/New York PCA-qual (08)/1995 (39); B) 16.Ne5 16...c5 17.f4 cxd4 18.g4 Nd5 19.g5 hxg5 20.Qh5 f5 21.Ng6 Nf6 22.Qxg5 Nh7 23.Qh5 Rf6 24.Rg1 Be4 25.Rg3 ½-½ Kasparov,G-Epishin,V/Moscow PCA-Intel GP 25'/1995 (36); 15.c4 0-0 16.Bc3 Qe7 17.g4 c5 18.Rhg1 Bxf3 19.Qxf3 cxd4 20.Bd2 Nd7 21.Qe4 f5 22.gxf5 Nc5 23.Qe2 exf5 24.Qxe7 Bxe7 25.Bxh6 Rf7 26.Kc2 Almasi,Z-Adams,M/Groningen (04)/1995/1-0 (57)] 15...c5 [¹15...Nd5 16.c4 Nf4 17.Bxf4 Bxf4 18.c5 Leko] 16.dxc5 Qxc5 17.a3 a5 [17...0-0 18.g4 Qd5 19.g5 Qxf3 20.gxf6 g6 21.Bxh6 Bxh2 22.Rh1 Topalov,V-Ivanchuk,V/Las Palmas/1996/] 18.Be3 Qc7 19.Bb5+ Ke7 [19...Bc6?! 20.Nd4±] 20.Nd4 The Ke7 is an important feature of the position, black has to be quite careful. 20...Bxh2?! [20...g6 21.h4²; ¹20...g6] 21.Nf5+ Kf8 [21...exf5?? 22.Bc5#] 22.Rxd8+ Qxd8 23.Rd1 Qc7 24.Bd4 e5 [24...exf5 25.Bxf6 gxf6 26.Rd7 Qe5 27.Rxb7 (27.Qc4 Qe1+ 28.Ka2 Qe6 29.Rxb7+-) 27...Qxe2 (27...Rg8 28.Qh5±) 28.Bxe2 Rg8 29.Bf3²] 25.Bxb6!! [25.Be3 Nd5] 25...Qxb6 26.Rd6 Qc7 27.Qc4 Qb8 [27...Qxc4? 28.Rd8+ Ne8 29.Rxe8#] 28.Rb6 Qc8 [28...e4 29.Bc6+-; 28...Qa8 29.Nd6 Bd5 30.Qc7+-] 29.Rxb7?? Spoiling a great game [29.Bc6! A) 29...Qxf5 30.Rxb7 Qe6 (30...Ne8 31.Bxe8 Kxe8 32.Qc7+-; 30...Ng8 31.Qc5+) 31.Qxe6 fxe6 32.Rb8+ Ke7 33.Rxh8+-; B) 29...Ne4 30.Qxe4 g6 (30...Bxc6 31.Rxc6 Qd7 32.Qd5!+-) 31.Rxb7 (31.Ng3!? Xe5 31...Bxg3 32.fxg3 Bxc6 33.Qxe5 Kg8 34.Rb8+-) 31...Qxf5 32.Qxf5 gxf5 33.Ra7+-; C) 29...Bxc6 30.Qc5+ Kg8 31.Ne7++-; 29.Qxc8+ Bxc8 30.Rb8 Kg8 31.Rxc8+± (31.Rxc8+ Petursson 31...Kh7 32.Rxh8+ Kxh8 33.Nd6±) ] 29...Qxb7 30.Nd6 Qe7? The young Hungarian misses a saving tactic [30...Qa7 31.Qc8+ Ke7 32.Nf5#; 30...Ne4!! A) 31.Nxb7 Nd2+ 32.Kc1 (32.Ka2 Petursson 32...Nxc4 33.Bxc4÷) 32...Nxc4 33.Bxc4 Bg1-+; B) 31.Nxe4 31...g6³] 31.Qc8+ Ne8 32.Nf5 h5 [32...Qe6 33.Bd7+-] 33.Nxe7 Kxe7 34.Qd7+ [34.Qd7+ Kf6 35.Qd8+ Kg6 36.Bxe8+-] 1-0

Position after:

(11) Kholmov,R - Fischer,R [A49] Skopje Skopje (16), 1967 [ChessBase] 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 0-0 5.0-0 d6 6.Nc3 Nbd7 [6...d5 7.Ne5 c6 8.e4 dxe4 (8...Be6? Ivkov,B-Fischer,R Santa Monica II. Piatigorsky Cup 1966) 9.Nxe4 Nxe4 10.Bxe4 Bh3 (10...c5? 11.Qf3!) 11.Re1 Nd7=] 7.b3 [7.e4 e5] 7...e5 8.dxe5 [8.e4 exd4 9.Nxd4 Re8] 8...dxe5 9.e4= Re8 10.Ba3 [10.a4 ¹ 10...a5 11.Ba3; 10.Bb2 ¹] 10...c6 11.Bd6? [11.Qe2 ¹] 11...Qa5!-+ 12.Qd3 [12.b4 Qa6] 12...Re6! 13.b4 [13.Ne2 Nxe4 (13...Ne8) ; 13.Ng5 Rxd6 14.Qxd6 Qxc3 (14...h6!-+ Kholmov,R 15.Nxf7 Qxc3µ) 15.Qe7ƒ] 13...Qa3! … Rxd6 14.Bc7 Qxb4 [14...Ne8 15.Ba5 b6 16.Rab1! bxa5 17.Rb3 Nc5! 18.bxc5 Qxc5 19.Rfb1„] 15.Rab1 Qe7! [15...Qf8? 16.Ng5 Re8 17.Bd6] 16.Rfd1 [16.Ng5 Nc5-+] 16...Ne8 17.Ba5 Rd6 18.Qe2 Rxd1+ 19.Qxd1 Bf8 20.Nd2 [20.Bb4 Qf6 21.Bxf8 Nxf8-+] 20...Qa3! 21.Nc4 Qc5 22.Bf1 b5 23.Nd2 [23.Bb4 Qd4-+] 23...Qa3! 24.Nb3 Nc5 25.Bxb5 [25.Bd8 Ne6! 26.Ba5 Nd6-+] 25...cxb5 26.Nxb5 Qa4 27.Nxc5 [27.Qd5 Qxe4-+] 27...Qxa5 28.Qd5 Rb8 29.a4 Bh3! 30.Qxe5 Rc8 31.Nd3 Qxa4 32.Ne1 a6 [32...a6 33.Nd4 (33.Nc3 Qc4; 33.Na7 Rc7 34.Ra1 Qd7 35.Rxa6 Rxa7 36.Rxa7 Qxa7 37.Qxe8 Qa1-+) 33...Bg7-+] 0-1

Position after:

(12) Fischer,R - Bisguier,A [C98] USA-ch New York (4), 1963 [ChessBase] 1.e4 e5 2.Nf3 [2.f4 exf4 3.Bc4 Qh4+ 4.Kf1 Fischer,R-Evans,L ch-USA 1963] 2...Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Be7 6.Re1 b5 7.Bb3 0-0 8.c3 d6 [8...d5!? Marshall,F 9.exd5 e4 (9...Nxd5) 10.dxc6 exf3 11.Qxf3 Bg4 12.Qg3 Bd6 13.Qh4 Re8 14.f3 Bf5 15.d4 Bxh2+ 16.Kxh2 Ng4+ 17.Kg3 Qxh4+ 18.Kxh4 Rxe1 19.fxg4 Rxc1 20.gxf5 Rd8 21.a4+- Fischer,R-Bernstein,S ch-USA 1959] 9.h3 Na5 10.Bc2 c5 11.d4 Qc7 [11...Nd7 Fischer,R-Keres,P Curacao ct 1962] 12.Nbd2 Nc6 13.dxc5 Rauser,V 13...dxc5 14.Nf1 Rd8 [14...Be6 15.Ne3 Rad8 16.Qe2 g6] 15.Qe2 Nh5 [15...Be6 16.Ne3 g6 17.Ng5 Bc8 18.Nd5! Nxd5 19.exd5 Bxg5 (19...Rxd5 20.Qf3! Be6 21.Nxe6 fxe6 22.Qg4!) 20.Bxg5 Rxd5 21.Rad1± Lipnitzsky,n] 16.g3! [16.a4! Rb8 17.axb5 axb5 18.g3! g6 19.h4! Be6 20.Ne3 c4 21.Ng5 Bxg5 22.hxg5 Na5 23.Ng4 Bxg4 24.Qxg4 Nb3 25.Bxb3 cxb3 26.Be3± Fischer,R-Eliskases,E Mar del Plata 1960] 16...g6 [16...Nf6 ¹ 17.h4 h6 18.Ne3 Be6; 16...Bxh3 17.Ng5 Bxg5 (17...Bxf1 18.Qxh5 Bxg5 19.Bxg5 f6 20.Bxf6! gxf6 21.Kxf1±) 18.Bxg5 Nf6 (18...Bxf1? 19.Bxd8) 19.Bxf6 gxf6 20.Ne3N] 17.h4! [17.Kh2 Bronstein,D-Reshevsky,S Zürich ct 1953; 17.Kg2 Weinstein,R] 17...Be6 18.Ne3 f6 [18...c4 19.Ng5!] 19.Nd5! Qb7 [19...Bxd5 20.exd5 Rxd5 21.c4! Nd4 22.Nxd4 Rxd4 23.cxb5 axb5 24.Qxb5 c4 Eliskases,E 25.Be3 Rb8 26.Qa4 Rb4? 27.Qe8+] 20.Nxe7+ Qxe7± ­ 21.Nh2 … Nh2-...-d5 21...Ng7 22.Ng4 c4 23.Qf3! Bxg4 [23...Rf8 24.Ne3 × d5] 24.Qxg4 Ne6 25.h5 [25.Be3 ¹ 25...Nc5? 26.Bxc5 Qxc5 27.Qe6+ Kg7 28.Rad1+-] 25...Kh8! [25...g5 26.Be3] 26.Kg2! [26.hxg6 Rg8„] 26...g5 [26...Rg8 27.Rh1 gxh5? (27...g5 ¹) 28.Qxh5 Nf4+ 29.Bxf4 exf4 30.e5! Rg7 31.exf6 Qxf6 32.Bxh7+-] 27.Be3 Nf4+! 28.Kh2! [28.gxf4? gxf4µ … Rg8; fxe3] 28...Nd3 29.Bxd3 cxd3? [29...Rxd3 ¹ 30.Red1 Rad8 31.Rxd3 cxd3 (31...Rxd3? 32.Qc8+ Nd8 33.Qxa6) 32.Rd1 Rd7 33.Rd2ƒ … Bc5] 30.Red1 Rd7 [30...b4 31.Rd2 bxc3 32.bxc3 Qa3 33.Rad1 Qxc3 34.Qe6 Kg7 35.h6+!+-] 31.Rd2 Na5 [31...Rad8 32.Rad1 Qf7 33.Bb6 Rb8 34.Bc5 Rbd8 35.Qf3+- × d3] 32.b3 Qd6 [32...Rc8? 33.Rxd3!] 33.Rad1 Re8 [33...Rad8 34.Rxd3 Qxd3 35.Rxd3 Rxd3 36.Bb6!] 34.Rxd3 Qxd3 35.Qxd7! [35.Qxd7! Qxd7 36.Rxd7 Re6 37.Kh3+- … Kh3-g4-f5] 1-0

Position after:

(13) Permanent Pin 1 Even with the move Black cannot extricate himself from the pin in time. 1...Kf8 2.a4 Ke7 3.a5 Kd7 4.a6+- *

Position after:

(14) Permanent Pin 2 *