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Subject: Re: Two interesting questions about versions of Crafty

Author: James T. Walker

Date: 17:04:19 12/03/03

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On December 03, 2003 at 19:46:45, Uri Blass wrote:

>On December 03, 2003 at 19:14:36, James T. Walker wrote:
>
>>I also have a question about Crafty 19.6.  Why is it such a poor Blitz player?
>>It seems strong at long time controls but still loses to Fritz 5.32 at Blitz.
>>Is there something in the search that only works at deeper depths than usually
>>reached at blitz? On my XP2400+ Crafty usually hits 9 ply minimum and 10-12 is
>>normal most of the time (G/5min).
>>Jim
>
>Maybe Fritz5.32 is the poor player at longer time control.
>I do not believe in something in the search that only works at deeper depths and
>I believe that it is possible to improve a program at all time controls.
>
>Uri

Hello Uri,
Why would you believe in something in the search that works at short time
controls but not at longer time controls to explain Fritz 5.32 playing poor at
longer time controls?  Then you do not believe in the other way around!  I have
seen this type of play on several programs.  Rebel also seems to exibit this
phenomena.  I seem to remember Ed once told me he had some things in his program
that required deeper searches of maybe 12 ply to work properly.
Jim



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