Author: Peter Kappler
Date: 12:13:38 06/13/99
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On June 13, 1999 at 13:49:41, James Robertson wrote: >I was testing a newer version of my program with WAC, and at position 146: > >8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8; id WAC146; > >where it usually chooses Bc8, it chose Bh3, with nearly the same score for both >moves. I was curious, so I tried Crafty 16.6 on the positions after Bc8 and Bh3, >respectively. Bc8 (the WAC move) generated a score of ~+9.77 (I think) and Bc8 >generated a score of +9.75. Can anyone else comfirm that the moves are about >equal? > >Thanks, >James James, I think Bc8 is the correct move. Bh3 doesn't throw away the win, but it does appear to waste time. If you force Crafty to play 1. Bh3 and then analyze the position, I suspect you will see that the bishop ends up moving back to c8 soon. Essentially, white's plan in the position is to wait for Black to push f2, and *then* play Bh3, after which Black's king has a harder time chasing the bishop away... Hope this helps. My program needs 12 plies to like Bc8, but it sticks with it. --Peter
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