Author: Uri Blass
Date: 06:45:25 12/14/01
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On December 14, 2001 at 09:11:11, José Antônio Fabiano Mendes wrote: >On December 14, 2001 at 09:07:56, José Antônio Fabiano Mendes wrote: > >> Kasparov-Ribli,1989 [position discussed by Kasparov,Botvinnik,Vaganian,and >> in rec.games.chess by CC world-champion Hans Berliner and Feng-Hsiung Hsu] >> [D]5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w >> And here Kasparov played 1. fxe3 and a draw was agreed. GM Vaganian >> suggested 1. Rd8! then 1...Qxb5 2. Qb6! Bxf2+ 3. Kxf2 Qf5+ >> 4. Kg1 Qb1 5. Kg2 Qe4 6. Kh3 Qf5 7. g4 Qf1 >> 8. Kg3 Qe1 9. Kf3 Qf1 10. Ke3 Qh3 11. Kd4 (if Kd2, then Qh6, K any g6 and the >> Queen guards the rook, with an unclear ending) e5 12. Kd5 Qg2 13. Kc5 Qg1 >> 14. Kc6 Qh1 15. Kb6 Qb1 16. Ka7 Qg1 17. Ka6 and the checks stop. >> How today's chess programs judge this famous position ? New position [D]5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1 Analysis by Gambit Tiger 2.0: 1.fxe3 Qxb5 2.Qxb5 axb5 3.Rd6 Rc8 4.Kf2 h5 5.Rb6 Rc5 ³ (-0.38) Depth: 9 00:00:00 94kN 1.fxe3 Qxb5 2.Qxb5 axb5 3.Rd6 f6 4.a3 Ra8 5.Rd3 e5 6.h3 ³ (-0.46) Depth: 9 00:00:00 142kN 1.Rd8 Qxb5 2.Rxf8+ Kxf8 3.Qd6+ Ke8 4.fxe3 Qb1+ 5.Kf2 Qf5+ 6.Kg1 Qg5 7.Qb8+ Ke7 8.Qb7+ Ke8 ³ (-0.32) Depth: 9 00:00:01 245kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.a4 Qf5+ 5.Kg1 Qb1+ 6.Kf2 Qf5+ = (-0.15) Depth: 10 00:00:01 446kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.a4 Qf5+ 5.Kg1 Qb1+ 6.Kf2 Qf5+ = (-0.15) Depth: 11 00:00:02 655kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.a4 Qf5+ 5.Kg1 Qb1+ 6.Kf2 Qf5+ = (-0.15) Depth: 12 00:00:04 1012kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.a4 Qf5+ 5.Kg1 Qb1+ 6.Kf2 Qf5+ = (-0.15) Depth: 13 00:00:06 1619kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Re8 4.a4 Qf5+ 5.Kg1 Qb1+ 6.Kf2 Qf5+ = (-0.15) Depth: 14 00:00:12 3127kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kf2 Qf5+ = (-0.15) Depth: 15 00:00:23 6189kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kf2 Qf5+ = (-0.15) Depth: 16 00:00:41 10974kN 1.Rd8 Qxb5 2.Qd6 Bxf2+ 3.Kxf2 Qf5+ 4.Kg1 Qb1+ 5.Kf2 Qf5+ = (-0.15) Depth: 17 00:01:27 22521kN (Blass, Tel-aviv 14.12.2001) After 8 plies in the main line: New position 3R1rk1/5ppp/p2Qp3/8/8/6P1/P3P2P/1q4K1 w - - 0 1 Analysis by Gambit Tiger 2.0: 5.Kg2 ± (0.90) Depth: 13 00:00:00 108kN 5.Kg2 +- (1.80) Depth: 13 00:00:02 597kN 5.Kg2 +- (1.80) Depth: 14 00:00:02 705kN 5.Kg2 +- (2.70) Depth: 14 00:00:06 1528kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qc1+ 11.Kf2 Qf4+ 12.Qxf4 Rxd8 13.Qc4 a5 +- (4.42) Depth: 14 00:00:20 5203kN 5.Kg2 Qe4+ +- (4.42) Depth: 15 00:00:21 5259kN (Blass, Tel-aviv 14.12.2001) Yace (only material evaluation) New position [D]3R1rk1/5ppp/p2Qp3/8/8/6P1/P3P2P/1q4K1 w - - 0 1 Analysis by Yace 0.99.56: 5.Qd1 Qxa2 -+ (-1.60) Depth: 1 00:00:07 5.Kg2 µ (-0.80) Depth: 1 00:00:07 5.Kg2 Qb7+ 6.Kf2 µ (-0.80) Depth: 2 00:00:07 5.Kg2 Qb7+ 6.Kg1 Qa7+ 7.Kg2 Qb7+ = (0.00) Depth: 3 00:00:07 5.Kg2 Qe4+ 6.Kf2 Qf5+ = (0.00) Depth: 3 00:00:08 5.Kg2 Qe4+ 6.Kf2 Qf5+ = (0.00) Depth: 4 00:00:08 5.Kg2 Qe4+ 6.Kf2 Qf5+ = (0.00) Depth: 5 00:00:10 4kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qf2+ 14.Kc6 h6 15.Rxf8+ Kh7 ² (0.40) Depth: 9 00:00:30 175kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qc1+ 15.Kb7 Qb1+ 16.Kc7 Qc2+ 17.Kb7 Qc1 18.Rxf8# ² (0.47) Depth: 9 00:00:30 175kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qc1+ 15.Kb7 g6 16.Rxf8+ Kg7 ± (0.87) Depth: 10 00:00:31 458kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qc1+ 15.Kb7 Qb1+ 16.Ka7 Qg1+ 17.Kxa6 Qh1 +- (1.96) Depth: 10 00:00:31 547kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qc1+ 15.Kb7 Qb1+ 16.Ka7 h6 17.Rxf8+ Kh7 +- (2.36) Depth: 11 00:00:32 1045kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 e5+ 12.Kd5 Qg2+ 13.Kc5 Qg1+ 14.Kc6 Qc1+ 15.Kb7 Qh1+ 16.Kxa6 h6 17.Rxf8+ Kh7 +- (3.36) Depth: 11 00:00:35 2637kN 5.Kg2 Qe4+ 6.Kh3 Qf5+ 7.g4 Qf1+ 8.Kg3 Qe1+ 9.Kf3 Qf1+ 10.Ke3 Qh3+ 11.Kd4 Qxg4+ 12.Kc3 h6 13.Rxf8+ Kh7 14.Rxf7 a5 15.Qf8 e5 +- (4.20) Depth: 11 00:00:43 6807kN (Blass, Tel-aviv 14.12.2001) After some learning the main line of the root position New position 5rk1/5ppp/p1Q1p3/1R6/q7/4b1P1/P2RPP1P/6K1 w - - 0 1 Analysis by Yace 0.99.56: 1.fxe3 axb5 = (0.00) Depth: 1 00:00:00 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 1 00:00:00 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 2 00:00:00 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 3 00:00:00 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 4 00:00:00 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 5 00:00:00 1kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 6 00:00:00 6kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 7 00:00:00 23kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 8 00:00:00 61kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 9 00:00:00 119kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 10 00:00:00 382kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 11 00:00:01 887kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 12 00:00:03 2060kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 13 00:00:07 4472kN 1.Rd8 Rxd8 2.Rd5 exd5 3.Qxa4 Bh6 4.Qa5 Re8 5.Qxa6 f6 6.Kg2 Kf7 7.f3 d4 8.Kh3 Re7 9.g4 +- (2.31) Depth: 14 00:00:16 10440kN (Blass, Tel-aviv 14.12.2001) Uri
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