Author: Will Singleton
Date: 18:31:16 03/03/02
Go up one level in this thread
On March 03, 2002 at 17:49:16, John Merlino wrote: >On March 03, 2002 at 15:44:41, Jon Dart wrote: > >>Recently Arasan had this position against Gandalf on ICC: >> >>[D] 8/p5kp/1pBnP1p1/8/8/P3P3/4K2P/8 w - - >> >>Arasan played e7? here and lost. It had limited time here: it switches >>off e7 pretty quickly, and prefers Kd3, but continues to give White a >>positive score. >> >>On the other hand, a variety of other programs I've tried (Crafty, >>Hiarcs 7, and Pharaon) play e4 here with a negative score for White. >> >>I'd be interested in any comments on this endgame. e7? is a loser, >>but is Black still better if White avoids this? >> >>--Jon > >Here's what Chessmaster says: > >Time Depth Score Positions Moves >0:00 5/6 0.29 11360 1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5 >0:00 6/7 0.09 24852 1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5 4.Bd7 > Ng7 >0:00 7/8 0.22 59680 1.e4 Kf8 2.Kd3 Ke7 3.Bd7 b5 4.e5 > Nc4 >0:01 8/9 -0.26 156594 1.e4 Kf8 2.Kd3 Ke7 3.e5 Nf5 4.Bd7 > Ng7 5.Ke4 Nxe6 >0:02 8/9 -0.15 291263 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 b5 4.Kd5 > a5 5.Bc6 >0:06 9/10 -0.12 658367 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+ > 4.Ke4 b5 5.Ke5 Nxe3 6.Bxb5 Ng4+ > 7.Kf4 Nxh2 >0:12 10/11 -0.15 1465984 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 h6 4.Kd5 > b5 5.e4 a5 6.e5 >0:25 11/12 -0.18 3282649 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+ > 4.Ke4 h6 5.a4 a6 6.h3 b5 7.axb5 > Nd6+ 8.Kd5 axb5 >1:00 12/13 -0.18 7869328 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+ > 4.Ke4 h6 5.a4 a6 6.h3 b5 7.axb5 > Nd6+ 8.Kd5 axb5 >2:16 13/14 -0.28 17722817 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+ > 4.Ke4 a6 5.a4 b5 6.axb5 axb5 7.Kd3 > Nd6 8.Kc3 h6 >5:56 14/15 -0.30 46635573 1.Kd3 Kf6 2.Bd7 Ke7 3.Kd4 Nf5+ > 4.Ke4 a6 5.a4 b5 6.axb5 axb5 7.Kd3 > Nd6 8.Kc3 h6 9.Kb4 > >jm position after your line Kd3 Kf6 Bd7 Ke7 Kd4 Nf5+ [D] 8/p2Bk2p/1p2P1p1/5n2/3K4/P3P3/7P/8 w - - Ke4 looks like the best move, but the score seems to go south for White soon after. My program plays the line Kd5! NxP Kc6 (kb7 kxa7 etc) which seems to draw. I wonder if it does draw, and if so, will any program play Kd5. Will ps: Jon, my prog plays Kd3 with a slight + for white, which goes negative after awhile.
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