Author: John Merlino
Date: 13:26:26 04/15/03
Go up one level in this thread
On April 15, 2003 at 16:13:46, Jorge Pichard wrote: >Lautier versus Kasparov Tilburg, 1997. > Here Kasparov made the terrible mistake to accept a draw (which cost him >clear first) instead of winning a pawn by 1...c5! Notice that Black makes no >progress after 1...Rd8? 2.Kf1 giving White time to defend his weak back rank. >You will notice that most programs will play 1...Rb8 2.Rxc6 Rxb4 3.Rc2 Rxe4 very >materialistic moves by grabbing as many pawns as possible, but it is very hard >to win, because all the pawns are on the same side of the board. > >7r/2R1bkpp/2p1pp2/8/1P2P3/8/1B3PPP/6K1 b - - 0 1 Chessmaster 9000, on a P3-733, finds c5 in eight seconds. But the score is not clearly better than for Rb8 or Rd8.... Time Depth Score Positions Moves 0:00 1/3 -0.13 1148 1...Rd8 2.Kf1 Rd2 3.Bc3 0:00 1/4 -0.13 2079 1...Rd8 2.Kf1 Rd2 3.Bc3 0:00 1/4 -0.95 3003 1...Rb8 2.Bc3 c5 3.b5 Rxb5 0:00 1/5 -0.88 5276 1...Rb8 2.Bc3 c5 3.b5 Rxb5 4.f4 0:00 1/6 -0.98 19558 1...Rb8 2.Bc3 c5 3.b5 Rxb5 4.f4 Rb1+ 5.Kf2 0:00 1/7 -0.98 60016 1...Rb8 2.Bc3 c5 3.b5 Rxb5 4.f4 Rb1+ 5.Kf2 0:01 2/8 -1.07 110060 1...Rb8 2.Bc3 c5 3.b5 Rxb5 4.f4 Rb3 5.Bd2 Rb2 0:02 3/9 -1.06 251536 1...Rb8 2.Bc3 c5 3.b5 Rxb5 4.Kf1 Rb3 5.Bd2 Rb2 6.Ke2 0:05 4/10 -1.02 607136 1...Rb8 2.Rxc6 Rxb4 3.Bc1 Rxe4 4.Be3 f5 5.Rc7 f4 6.Bd2 Rd4 0:08 4/10 -1.07 943601 1...c5 2.Bc3 Rb8 3.b5 Rxb5 4.Kf1 Rb1+ 5.Ke2 Rg1 6.Kf3 Rh1 7.h3 Rd1 0:14 5/11 -1.03 1674075 1...c5 2.Bc3 Rb8 3.b5 Rxb5 4.Kf1 Rb3 5.Bd2 Rb2 6.Ke2 f5 7.exf5 exf5 0:33 6/12 -1.01 4083449 1...c5 2.Bc3 Rb8 3.b5 Rxb5 4.Kf1 Rb1+ 5.Ke2 Rg1 6.g3 Rh1 7.h4 Rc1 8.Kd3 Rd1+ 9.Bd2 2:02 7/13 -1.06 14699817 1...c5 2.Bc3 Rb8 3.b5 Rxb5 4.Kf1 Rb3 5.Bd2 Rb2 6.Ke2 f5 7.exf5 exf5 8.Kd3 Ke6 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.