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Subject: Re: Fritz defeats itself at Leiden!

Author: Robert Hyatt

Date: 19:45:58 05/22/01

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On May 22, 2001 at 07:26:03, Ralf Elvsén wrote:

>On May 21, 2001 at 10:34:08, Robert Hyatt wrote:
>
>>On May 21, 2001 at 00:58:33, Vine Smith wrote:
>>
>>>I thought Crafty's choice was the most sensible of those summarized by Sune
>>>Larson. I will run the position after Fritz's 21.b4 to see if Crafty has a
>>>strongly negative view of what White has done. That would be important for any
>>>program trying to win from this point, as failure to understand that keeping the
>>>queen confined must be a priority could result in the premature release of this
>>>piece for the sake of less important advantages. I'm going to use 18.9 instead
>>>of Larsson's 18.8 (the Chessbase version, I'm guessing), because I prefer to
>>>work from the command line. Are there any significant evaluation differences
>>>between recent Crafty versions?
>>
>>I didn't see much in the way of eval changes in 18.9... it is mainly a more
>>aggressive "book learner" with a few other minor changes.  The evals should be
>>pretty similar (not identical however).
>>
>>18.10 is more different, as bishop scoring has changed after several hours of
>>GM discussion.  Castling is handled a bit differently too.
>
>Will this affect how it evaluates bad bishops in the
>endgame? This is one pretty clear weakness I think I can identify.
>
>Ralf


That is one thing we have been working on, yes...



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