Author: Drexel,Michael
Date: 13:05:00 01/07/03
Go up one level in this thread
On January 07, 2003 at 14:27:49, John Merlino wrote: >On January 07, 2003 at 11:47:41, Drexel,Michael wrote: > >>[D] 1r4k1/pp1R2p1/2n1p2p/8/8/2b1B1PP/P4PB1/6K1 w - - 0 23 >> >>IMHO this was the key moment of Kramnik-DF match last October. Kramnik blundered >>his winning chances away with 23.Bxc6. Dorian Rogozenko (not a top >>grandmaster, but strong anyway) criticized this move after the 4th game on >>chessbase server. >>23.Kf1 seems to be better, even in case black is able to defend this. can your >>programs avoid 23.Bxc6? >> >>two games played with 30' per move on Athlon 1.66GHz ponder off: >> >> >>Shredder 7 - Fritz 8 [D34] >> >>1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.g3 Nc6 6.Bg2 Nf6 7.0-0 Be7 8.Nc3 0-0 >>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.Kf1 e5 24.Ke2 Bd4 25.Bd5+ Kh7 26.h4 a6 27.Bd2 Kh8 28.f3 a5 29.Be4 >>h5 30.Be1 a4 31.Bg6 Bb2 32.Ke3 b5 33.Rc7 Nd8 34.Re7 Nc6 35.Rc7 Nd8 36.Re7 Nc6 >>37.Re8+ Rxe8 38.Bxe8 Nd4 39.Ke4 Kh7 40.g4 a3 41.gxh5 Ne2 42.Bf7 Kh6 43.Bd2+ Nf4 >>44.Kf5 Bd4 45.Be8 Bb2 46.Kg4 Bd4 47.Bxb5 Bb2 48.Bd3 Bd4 49.Bg6 Ba1 50.Be4 Bd4 >>51.Bb4 Ng2 52.Bxa3 Ne3+ 53.Kg3 Kxh5 54.Be7 Bc3 55.a4 Be1+ 56.Kh3 Ba5 57.Bg5 Nd1 >>58.Bd5 Nf2+ 59.Kh2 Kg6 60.Kg3 Be1 61.Kg2 Nd1 62.Bb3 Nb2 63.Bd8 Bb4 64.a5 Nd3 >>65.Bc2 e4 66.Bb6 Nc5 67.Bxe4+ Kf7 68.Bc6 Ke6 69.Kg3 Nd7 70.Bxd7+ Kxd7 71.a6 Kc6 >>72.Bd4 g6 73.Kg4 Be7 74.h5 gxh5+ 75.Kxh5 Bd6 76.Kg6 Kc7 77.Kf6 Ba3 78.a7 Bf8 >>79.a8Q Be7+ 80.Ke6 Bc5 81.Qa5+ Kb7 82.Qxc5 Kb8 83.Kd7 Ka8 84.Qc8# 1-0 >> >> >>Fritz 8 - Shredder 7 [D34] >> >>1.d4 d5 2.c4 e6 3.Nf3 c5 4.cxd5 exd5 5.g3 Nc6 6.Bg2 Nf6 7.0-0 Be7 8.Nc3 0-0 >>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.Kf1 a5 24.Be4 Nb4 25.a4 b6 26.Bb7 Bf6 27.Bxb6 Nd3 28.Ba7 Rd8 >>29.Rxd8+ Bxd8 30.Ke2 Nb4 31.Ke3 Kf7 32.Kd4 g5 33.Kc4 Kf6 34.Bd4+ e5 35.Bc3 Kf5 >>36.Kb5 h5 37.Bxb4 axb4 38.a5 Bc7 39.f3 e4 40.a6 Bb8 41.Bxe4+ Ke6 42.h4 gxh4 >>43.gxh4 Ba7 44.Kxb4 Kd6 45.f4 Kc7 46.f5 Kb6 47.f6 Bb8 48.Kc4 Bd6 49.Kd5 Bf8 >>50.Bd3 Bb4 51.Ke6 1-0 > >Chessmaster 9000, on a P3-733, prefers Be4: > >Time Depth Score Positions Moves >0:00 1/3 0.27 1391 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 > Rb2 >0:00 1/4 0.29 3713 23.Bxc6 bxc6 24.Rxa7 e5 25.Rc7 > Rb1+ 26.Kg2 >0:00 1/5 0.33 13632 23.Bxc6 bxc6 24.Rxa7 Rb2 25.a4 Ra2 >0:01 1/6 0.52 47283 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 > Rb2 26.Ra6 Bd2 27.Bxd2 Rxd2 28.Rxc6 > Rxa2 29.Rxe6 >0:02 1/7 0.52 72539 23.Bxc6 bxc6 24.Rxa7 Rb1+ 25.Kg2 > Rb2 26.Ra6 Bd2 27.Bxd2 Rxd2 28.Rxc6 > Rxa2 29.Rxe6 >0:04 1/8 0.41 152078 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 > 26.Rd7 Bxe3 27.fxe3 Ra8 >0:07 2/9 0.18 454869 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 > 26.Rd7 Bxe3 27.fxe3 Ra8 28.Re7 > Rxa4 29.Rxe5 >0:29 3/10 0.18 2312657 23.Bxc6 bxc6 24.Rxa7 e5 25.a4 Bd4 > 26.Rd7 Bxe3 27.fxe3 Ra8 28.Re7 > Rxa4 29.Rxe5 >0:34 3/10 0.26 2740109 23.Be4 a5 24.Bf4 e5 25.Bc1 Nd4 > 26.Be3 b6 27.Re7 Ne2+ 28.Kf1 Kf8 >1:46 4/11 0.29 9289381 23.Be4 a5 24.a4 Kh8 25.Bb6 Kg8 > 26.f4 e5 27.fxe5 Bxe5 28.Kg2 >4:24 5/12 0.31 24975824 23.Be4 a5 24.a4 Kh8 25.Bb6 e5 26.Kf1 > Bd4 27.Bxc6 Bxb6 28.Bxb7 Rf8 > >jm I think Rogozenko prefered 23.Be4 too [23.Be4!(23.Kf1!?)]. I would prefer 23.Kf1. both moves are better than 23.Bxc6.
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.