Author: Amir Ban
Date: 00:47:25 02/17/99
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On February 15, 1999 at 08:01:14, Steffen Jakob wrote: >On February 15, 1999 at 05:58:35, Jeff Anderson wrote: > >>On February 15, 1999 at 03:22:50, Jouni Uski wrote: >> >>>In was quite surprised, that in two consecutine(!) tournament game between >>>Junior 5 and Crafty 16.3 Junior eats a7 pawn with bishop. So after b6 bishop is >>>lost. I have never seen Mchess or Rebel even considering that. Hmmm... >> >>I believe that Crafty has something in its eval that keeps it from playing this >>move even when it cannot actually see the bishop being captured after it's >>trapped. Is there any test position to see if a program will do this or not? > >I just cannot believe that Amir has simply forgotten to implement a "trapped >bishop" penalty. Amir? The bishop is considered trapped at a7, but not at b8, which may be why Junior and several other programs (Rebel included) fail here. Bobby Fischer fell for it against Spassky, so it's quite respectable :) Amir
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