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Subject: Re: Any differences between Crafty 19.15 and 19.17? NT

Author: Robert Hyatt

Date: 14:17:04 09/03/04

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On September 03, 2004 at 16:56:53, Peter Skinner wrote:

>On September 03, 2004 at 16:53:43, Robert Hyatt wrote:
>
>>On September 03, 2004 at 16:12:57, Eran Karu wrote:
>>
>>>.
>>
>>
>>2
>>
>>look at main.c comments.
>
>I find the pawn changes to be much better than v19.15. This is from about 60
>games thus far ar 30/0 vs Ruffian 2.1.0.
>
>Peter


There was definitely a long-term problem.  The blocked pawn code was doubling up
behind the isolated pawn code in ways I didn't intend, making the penalty much
too high in some cases.  Was watching a game the other night where the score was
about +1.0 yet it looked only marginally better for white to me.  Investigation
found the problem and some immediately better pawn structure play in the games
after the fix..




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