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Subject: Re: crafty & gnu

Author: Robert Hyatt

Date: 21:26:42 12/12/98

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On December 12, 1998 at 16:52:31, Marc wrote:

>On December 12, 1998 at 14:13:50, KyoJin Kim wrote:
>
>>I would like to ask to Dr. Hyatt.
>>What is the main factor crafty is stronger than gnu chess?
>>Bit board? Better evaluation function? Better search algorithm?
>>I will appreciate anybody's answer too.
>>Thank you in advance.
>
>Crafty has far more search extensions and better evaluation in my opinion.  I
>have analyzed gnuchess pretty thoroughly and I think that it is very fast and
>utilizes most advanced search techniques (Null move, PVS, etc...).  Though I
>have only recently begun to look at Crafty, it looks to me like a *lot* of time
>has been spent on making the evaluation very strong.
>
>While we're at it, Crafty is 1000 times more readable than the source code mess
>that is gnuchess :)


There may be a few tricks in crafty's search extensions that are not in gnu's,
but not many.  Most of the difference, if there is much of a difference, is in
the evaluation...



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