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Subject: Re: Crafty analysis question

Author: Michael Fuhrmann

Date: 16:15:02 03/16/01

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On March 16, 2001 at 17:34:50, Robert Hyatt wrote:

>On March 16, 2001 at 16:36:45, Michael Fuhrmann wrote:
>
>>[D] 8/8/1pk1prp1/p6p/2PP1P1P/4P3/3K4/6R1 b - - 0 42
>>
>>Crafty reached this position as black vs. little goliath in a game (pondering
>>off). After about 8 seconds thinking on my 350 MHz box, crafty played b5. This
>>had the effect of losing the a pawn a few moves later, and the game was quickly
>>lost after that. Crafty may be lost anyway, but b5 doesn't help.
>>
>>Later, I let crafty analyze the position. It liked b5 for about 4 seconds, then
>>switched to Kc7. So my question is, why did Crafty stick with b5 for 8 seconds
>>in the game, but realized in half that time during analysis that the move was
>>inferior?
>
>
>Don't forget "position learning".  Delete position.bin and try it again
>to see if it takes longer to see the problem...
>

Seems to have no effect. I deleted position.bin (& position.lrn) and it still
switches from b5 to Kc7 after about 4 sec.




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