Author: John Merlino
Date: 10:19:28 10/12/02
Go up one level in this thread
On October 12, 2002 at 09:45:19, Terry Ripple wrote: >On October 11, 2002 at 14:28:50, John Merlino wrote: > >>On October 11, 2002 at 05:33:22, Igor Gorelikov wrote: >> >>>I was amazed when Kramnik has played 23.Bxc6? >>> >>>The position is winning for White. >>> >>>The black pieces are pinned. White can make his position stronger and >>>stronger. >>> >>>My first thought was 23.Kf1 to provide better position for king. But it's too >>>passive and first White has to move his pawns with either a2-a4 or f2-f4. >>> >>>My single explanation: Kramnik has mercy for Fritz. >>> >>>The game: >>> >>>[Event "Brains in Bahrain"] >>>[Site "Manama BAH"] >>>[Date "2002.10.10"] >>>[Round "4"] >>>[White "Kramnik,V"] >>>[Black "DEEP FRITZ"] >>>[Result "1/2-1/2"] >>>[WhiteElo "2807"] >>>[EventDate "2002.10.04"] >>>[ECO "D34"] >>> >>>1. d4 d5 2. c4 e6 3. Nf3 c5 4. cxd5 exd5 5. g3 Nc6 6. Bg2 Nf6 7. O-O Be7 8. >>>Nc3 O-O 9. Bg5 cxd4 10. Nxd4 h6 11. Bf4 Bg4 12. h3 Be6 13. Rc1 Re8 14. Nxe6 >>>fxe6 15. e4 d4 16. e5 dxc3 17. exf6 Bxf6 18. bxc3 Qxd1 19. Rfxd1 Rad8 20. >>>Be3 Rxd1+ 21. Rxd1 Bxc3 22. Rd7 Rb8 23. Bxc6 bxc6 24. Rxa7 Rb2 25. Ra6 Bd2 >>>26. Rxc6 Bxe3 27. fxe3 Kf7 28. a4 Ra2 29. Rc4 Kf6 30. Kf1 g5 31. h4 h5 32. >>>hxg5+ Kxg5 33. Ke1 e5 34. Kf1 Kf5 35. Rh4 Kg6 36. Re4 Kf5 37. Rh4 Kg5 38. >>>Kg1 Kg6 39. g4 hxg4 40. Rxg4+ Kf5 41. Rc4 1/2-1/2 >> >>[D]1r4k1/pp1R2p1/2n1p2p/8/8/2b1B1PP/P4PB1/6K1 w - - 0 23 >> >>In this position, Chessmaster 9000, on a P4-2.66, switches from Bxc6 to Kf1 >>after 11 seconds. But it then switches back to Bxc6 after 8:31.... >> >>Time Depth Score Positions Moves >>0:00 1/3 0.27 1304 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 >> Rb2 >>0:00 1/4 0.29 3635 23.Bxc6 bxc6 24.Rxa7 e5 25.Rc7 >> Rb1+ 26.Kg2 >>0:00 1/5 0.33 13620 23.Bxc6 bxc6 24.Rxa7 Rb2 25.a4 Ra2 >>0:00 1/6 0.52 47273 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 >> Rb2 26.Ra6 Bd2 27.Bxd2 Rxd2 28.Rxc6 >> Rxa2 29.Rxe6 >>0:00 1/7 0.52 72089 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 >> Rb2 26.Ra6 Bd2 27.Bxd2 Rxd2 28.Rxc6 >> Rxa2 29.Rxe6 >>0:00 1/8 0.41 150919 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 >> 26.Rd7 Bxe3 27.fxe3 Ra8 >>0:01 2/9 0.18 451589 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 >> 26.Rd7 Bxe3 27.fxe3 Ra8 28.Re7 >> Rxa4 29.Rxe5 >>0:09 3/10 0.18 2513719 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 >> 26.Rd7 Bxe3 27.fxe3 Ra8 28.Re7 >> Rxa4 29.Rxe5 >>0:11 3/10 0.24 2996110 23.Kf1 a5 24.a4 Kh7 25.Ke2 Kg6 >> 26.f4 Kf6 27.Bc5 Bb4 >>0:31 4/11 0.28 8256089 23.Kf1 a5 24.a4 Kh7 25.Be4+ Kg8 >> 26.Ke2 g5 27.Bc5 Rc8 28.Rxb7 Nd4+ >> 29.Bxd4 Bxd4 >>1:34 5/12 0.31 25934731 23.Kf1 a5 24.a4 Kf8 25.Bc5+ Ke8 >> 26.Rc7 Bf6 27.f4 Bc3 28.Bxc6+ bxc6 >> 29.Re7+ Kd8 30.Rxe6 Kd7 >>5:15 6/13 0.29 88996276 23.Kf1 a5 24.a4 Bf6 25.Bf4 Be5 >> 26.Bd2 Bf6 27.Ke1 Kf8 28.f4 g5 >> 29.Bxc6 bxc6 30.fxg5 >>8:31 6/13 0.32 147086946 23.Bxc6 bxc6 24.Rxa7 Rc8 25.Ra3 >> Bb2 26.Rb3 Bf6 27.Rb6 Kf7 28.Rb7+ >> Ke8 29.a4 Ra8 30.Ba7 Rd8 >>13:55 7/14 0.30 252083401 23.Bxc6 bxc6 24.Rxa7 Rc8 25.Ra3 >> Bb2 26.Rb3 Bf6 27.Bc5 Ra8 28.a3 >> Ra5 29.Rb8+ Kf7 30.Bb4 Ra4 31.Rb7+ >> Kg6 >> >>jm > >From the looks of the thinking time, CM9000 would have actually played 23.Kf1 >with the time control they were using for the match! > >Terry Correct. But the point of my post was that, perhaps, Bxc6 IS the best move, and not a "mercy" move as was suggested by the original post. jm
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.