Author: John Jack
Date: 17:03:22 10/30/05
Fritz 9 can"t Find 67. R:C4 (173) Botvinnik,Mikhail - Fischer,Robert James [D98] Varna ol (Men) fin-A Varna (10), 1962 [Fritz 9 (5s)] D98: Grünfeld: Russian System: 7 e4 Bg4 1.c4 1...g6 2.d4 Nf6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 0-0 7.e4 Bg4 8.Be3 Nfd7 9.Be2 Nc6 10.Rd1 Nb6 11.Qc5 Qd6 12.h3N [12.Qxd6 cxd6 13.d5 Bxf3 14.gxf3 Ne5 15.Nb5 Nec4 16.b3 Nxe3 17.fxe3 a5 18.a4 Nd7 19.Bc4 Rac8 20.Ke2 Rc5 21.Rc1 Ne5 22.f4 Nxc4 23.Rxc4 Rxc4 24.bxc4 f5 25.Kd3 g5 26.Rf1 gxf4 Hamann,S-Andersen,B/Nykobing 1961/MCD/0-1 (51); 12.d5 Ne5 (12...Nb4 13.0-0 Bxf3 14.gxf3 Be5 15.Nb5 Qxc5 16.Bxc5 Na6 17.Bxe7 Rfe8 18.Ba3 Bf4 19.Nd4 Re5 20.Bxa6 bxa6 21.Ne2 Bh6 22.b3 f5 23.Bb2 Ree8 24.Ng3 Rad8 25.Rfe1 Kf7 26.Bc1 Bg7 27.Bf4 Isik,E (2085)-Kemaloglu,Y (2091)/Ankara 2002/CBM 089 ext/1-0 (47); 12...Bxf3 13.gxf3 Ne5 14.Nb5 Qf6 15.Nd4 Rfc8 16.h4 Qd6 17.Rc1 Ned7 18.Qxd6 cxd6 19.Kd2 h5 20.f4 Rxc1 21.Rxc1 Bf6 22.Rh1 Na4 23.b3 Nac5 24.f3 a5 25.Bf2 Nb8 26.Rb1 Nba6 27.Bc4 Platt,J-Ujtelky,M/Trencianske Teplice 1949/MCL/1/2-1/2 (65)) 13.Nxe5 Bxe2 14.Kxe2 Bxe5 15.Qxd6 cxd6 16.Bd4 Rfc8 17.Bxe5 dxe5 18.Rc1 Nc4 19.b3 Nd6 20.Ke3 f6 21.g3 Rc7 22.Ne2 Rac8 23.Rxc7 Rxc7 24.Rc1 1/2-1/2 Arencibia,W (2560)-Konguvel,P (2425)/Linares 1997/CBM 058] 12...Bxf3 13.gxf3 Rfd8 14.d5 Ne5 15.Nb5 Qf6 16.f4 Ned7 17.e5 Qxf4 18.Bxf4 Nxc5 19.Nxc7 Rac8 20.d6 exd6 21.exd6 Bxb2 22.0-0 Nbd7 23.Rd5 b6 24.Bf3 Ne6 25.Nxe6 fxe6 26.Rd3 Nc5 27.Re3 e5 28.Bxe5 Bxe5 29.Rxe5 Rxd6 30.Re7 Rd7 31.Rxd7 Nxd7 32.Bg4 Rc7 33.Re1 Kf7 34.Kg2 Nc5 35.Re3 Re7 36.Rf3+ Kg7 37.Rc3 Re4 38.Bd1 Rd4 39.Bc2 Kf6 40.Kf3 Kg5 41.Kg3 Ne4+ [41...a6!?-+ ] 42.Bxe4-/+ Rxe4 A rook endgame occured 43.Ra3 [43.Rc7 Ra4=/+ ] 43...Re7 44.Rf3 Rc7 45.a4 Rc5 [45...Kh5!?-/+ ] 46.Rf7=/+ White threatens to win material: Rf7xa7 46...Ra5 Black threatens to win material: Ra5xa4 47.Rxh7 Rxa4 48.h4+ Kf5 49.Rf7+ Ke5 50.Rg7 Ra1 51.Kf3 [51.Kg4 Kf6 52.Rb7 Ra3-/+ ] 51...b5 [51...Kf6 52.Rb7-/+ ] 52.h5 [52.Rxg6 b4 53.Ke3 a5=/+ ] 52...Ra3+ 53.Kg2 gxh5 54.Rg5+ White forks: e5+h5 54...Kd6 [54...Kf4 55.Rxb5 h4 56.Rb4+ Kg5 57.Rb5+ Kf6 58.f3=/+ ] 55.Rxb5=/+ h4 56.f4 [56.f3!?=/+ must definitely be considered] 56...Kc6 57.Rb8 [57.Rb1 Rg3+ 58.Kf2 Rg7-/+ ] 57...h3+-+ 58.Kh2 a5 59.f5 Kc7 [=59...Rf3!? 60.Rf8 a4-+ ] 60.Rb5= Kd6 61.f6 Pushes the passed pawn 61...Ke6 Black threatens to win material: Ke6xf6 62.Rb6+ Kf7 63.Ra6 Kg6 64.Rc6 a4 65.Ra6 Kf7 66.Rc6? [=66.Kh1= is a viable option] 66...Rd3 67.Ra6 a3 68.Kg1 1/2-1/2 Fruit 2.2.1, 75'+30"/40+15'+30" [D]7Q/p7/8/8/7R/k3K3/5P2/1r1q4 w - - 0 1 Analysis by Fritz 9: 4.Qf8+ Ka2 5.Qc5 Qb3+ 6.Ke2 Qd1+ 7.Ke3 = (0.00) Depth: 7/24 00:00:00 115kN 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Rg4 Qd2+ 8.Kf5 Rf3+ 9.Kg6 Qd3+ 10.Kg5 Qd8+ 11.Kh5 = (-0.02) Depth: 8/26 00:00:00 315kN 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Kb2 8.Qxa6 Qd4+ 9.Kg5 Qc5+ 10.Kf4 Rb4+ = (-0.01) Depth: 9/28 00:00:01 1063kN, tb=1 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Kb2 8.Ke5 Rb5+ 9.Kf4 Qd2+ 10.Kf3 Qc3+ 11.Qxc3+ Kxc3 12.Ke2 = (-0.18) Depth: 10/30 00:00:02 2416kN, tb=10 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Qd2+ 8.Kg4 Kb2 9.Qf7 Qd1+ 10.f3 Rb4+ 11.Kh5 Rxh4+ 12.Kxh4 Qd8+ 13.Kg4 a5 = (-0.24) Depth: 11/36 00:00:05 7331kN, tb=54 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Qd2+ 8.Kg4 Kb2 9.Qf7 Qd1+ 10.f3 Rb4+ 11.Kh5 Rxh4+ 12.Kxh4 Qd8+ 13.Kg4 a5 = (-0.24) Depth: 12/41 00:00:13 17640kN, tb=185 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Kb2 8.Ke5 Rb5+ 9.Kf4 Qd2+ 10.Kg3 Qc3+ 11.f3 Qxc4 12.Rxc4 Kb3 13.Rc8 a5 = (-0.20) Depth: 13/41 00:00:32 40829kN, tb=822 4.Qf8+ Ka2 5.Qc5 Rb3+ 6.Kf4 a6 7.Qc4 Kb2 8.Ke5 Rb5+ 9.Kf4 Qd2+ 10.Kg3 Rg5+ 11.Rg4 a5 12.Rxg5 Qxg5+ 13.Kf3 Qf5+ 14.Kg2 Ka3 = (-0.25) Depth: 14/45 00:01:20 101569kN, tb=2419
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