Author: Matthew White
Date: 18:45:10 06/13/03
Go up one level in this thread
On June 13, 2003 at 20:57:07, Hristo wrote: >This was blitz (10 min. for all) game, but even after analyzing the game at 2:15 >per move the engine had no idea of the trouble until it was too late. > >At what move do other programs consider white's position to be dangerous? >How do other programs evaluate 19. ... Bxh2+ ?! > >[Event "?"] >[Site "?"] >[Date "2003.06.13"] >[Round "?"] >[White "Sigma Chess 6"] >[Black "Hristo Doichev"] >[Result "0-1"] >[ECO "A01"] > >1. b3 f5 2. Nf3 Nf6 3. d4 d5 4. e3 e6 5. Bd3 Bd6 6. O-O Nbd7 7. Bb2 h6 8. c4 c6 >9. c5 Bc7 10. Nbd2 Qe7 11. b4 a5 12. Nh4 Nf8 13. bxa5 g5 14. Nhf3 Ng6 15. Nb3 >g4 16. Ne1 h5 17. Bc3 Kf7 18. Qc2 h4 19. Rb1 Bxh2+ 20. Kxh2 g3+ 21. Kh3 Bd7 22. >f3 Rag8 23. Nc1 Nh7 24. f4 Qg5 25. Qd1 e5 26. Be2 exf4 27. Bh5 Qg4+ 28. Qxg4 >fxg4+ 29. Bxg4 Ng5# 0-1 > >Regards, >Hristo The mistake it made was 21. Kh3, walking directly into a forced mate in 8. Better, it appears, is Kg1, where the sacrifice doesn't show much promise. Here is Shredder 7.04 analysis of the 4 choices: ----- 9 0:01 +1.28 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 Nxf2 25.Kxf2 hxg2 26.Na5 bxa6 27.Nxc6 (1.034.334) 521.3 LT: 8 0:00 +0.61 21.Kh1 Ng4 22.Kg1 h3 23.fxg3 Nxe3 (286.251) 539.0 LT: 8 0:00 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (286.279) 539.1 LT: 8 0:00 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (286.308) 539.1 ----- 9 0:01 +1.28 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 Nxf2 25.Kxf2 hxg2 26.Na5 bxa6 27.Nxc6 (1.034.334) 521.3 9 0:01 +0.61 21.Kh1 Ng4 (1.034.383) 521.3 LT: 8 0:00 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (286.279) 539.1 LT: 8 0:00 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (286.308) 539.1 ----- 9 0:01 +1.28 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 Nxf2 25.Kxf2 hxg2 26.Na5 bxa6 27.Nxc6 (1.034.334) 521.3 9 0:01 +0.61 21.Kh1 Ng4 (1.034.383) 521.3 9 0:01 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (1.034.420) 521.3 LT: 8 0:00 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (286.308) 539.1 ----- 9 0:01 +1.28 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 Nxf2 25.Kxf2 hxg2 26.Na5 bxa6 27.Nxc6 (1.034.334) 521.3 9 0:01 +0.61 21.Kh1 Ng4 (1.034.383) 521.3 9 0:01 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (1.034.420) 521.3 9 0:01 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.034.459) 521.4 ----- 10 0:03 +0.99 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Bd7 26.Re2 hxg2 27.Rxg2 Rag8 28.Bxa6 Nxe3 29.Be1 (1.954.213) 504.3 LT: 9 0:01 +0.61 21.Kh1 Ng4 (1.034.383) 521.3 LT: 9 0:01 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (1.034.420) 521.3 LT: 9 0:01 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.034.459) 521.4 ----- 10 0:03 +0.99 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Bd7 26.Re2 hxg2 27.Rxg2 Rag8 28.Bxa6 Nxe3 29.Be1 (1.954.213) 504.3 10 0:03 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (1.954.238) 504.3 LT: 9 0:01 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 Qh2 25.a6 Nh4 26.axb7 Bxb7 27.Nd2 Nxf3 28.Rxb7+ Kf6 (1.034.420) 521.3 LT: 9 0:01 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.034.459) 521.4 ----- 10 0:03 +0.99 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Bd7 26.Re2 hxg2 27.Rxg2 Rag8 28.Bxa6 Nxe3 29.Be1 (1.954.213) 504.3 10 0:03 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (1.954.238) 504.3 10 0:03 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (1.954.257) 504.3 LT: 9 0:01 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.034.459) 521.4 ----- 10 0:03 +0.99 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Bd7 26.Re2 hxg2 27.Rxg2 Rag8 28.Bxa6 Nxe3 29.Be1 (1.954.213) 504.3 10 0:03 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (1.954.238) 504.3 10 0:03 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (1.954.257) 504.3 10 0:03 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.954.268) 504.3 ----- 11 0:07 +1.02 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Qc7 26.Re2 hxg2 27.Rxg2 Nxe3 28.Ng5+ Ke7 29.Bb5 Nxc2 30.Nxc6+ Qxc6 (3.795.307) 476.2 LT: 10 0:03 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (1.954.238) 504.3 LT: 10 0:03 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (1.954.257) 504.3 LT: 10 0:03 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.954.268) 504.3 ----- 11 0:07 +1.02 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Qc7 26.Re2 hxg2 27.Rxg2 Nxe3 28.Ng5+ Ke7 29.Bb5 Nxc2 30.Nxc6+ Qxc6 (3.795.307) 476.2 11 0:07 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (3.795.342) 476.2 LT: 10 0:03 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (1.954.257) 504.3 LT: 10 0:03 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.954.268) 504.3 ----- 11 0:07 +1.02 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Qc7 26.Re2 hxg2 27.Rxg2 Nxe3 28.Ng5+ Ke7 29.Bb5 Nxc2 30.Nxc6+ Qxc6 (3.795.307) 476.2 11 0:07 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (3.795.342) 476.2 11 0:07 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (3.795.366) 476.2 LT: 10 0:03 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 fxe4 (1.954.268) 504.3 ----- 11 0:07 +1.02 21.Kg1 Ng4 22.Nf3 gxf2+ 23.Rxf2 h3 24.a6 bxa6 25.Na5 Qc7 26.Re2 hxg2 27.Rxg2 Nxe3 28.Ng5+ Ke7 29.Bb5 Nxc2 30.Nxc6+ Qxc6 (3.795.307) 476.2 11 0:07 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (3.795.342) 476.2 11 0:07 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (3.795.366) 476.2 11 0:07 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 (3.795.390) 476.2 ----- 12 0:27 +1.05 21.Kg1 Ng4 22.a6 bxa6 23.Qe2 gxf2+ 24.Rxf2 Nxf2 25.Qxf2 h3 26.e4 dxe4 27.Bxe4 hxg2 28.Bxc6 (12.411.403) 455.1 LT: 11 0:07 +0.61 21.Kh1 Ng4 22.Nf3 h3 23.Bxf5 exf5 24.fxg3 (3.795.342) 476.2 LT: 11 0:07 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (3.795.366) 476.2 LT: 11 0:07 -M8 21.Kh3 Ne4 22.Bxe4 Nf4+ 23.exf4 (3.795.390) 476.2 xf5 exf5 24.fxg3 (3.795.342) 476.2 LT: 11 0:07 -1.31 21.fxg3 Ng4+ 22.Kg1 hxg3 23.Rf3 Qh4 24.Kf1 (3.795.366) 476.2 LT: 11 0:07 -M8 21.K
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.