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Subject: Re: Two interesting questions about versions of Crafty

Author: Robert Hyatt

Date: 06:38:36 12/04/03

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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


One thing is the q-search.  Shallower searches give null-move a better
opportunity to hide a key tactic.  At longer depths, this gets pushed
farther out into the tree, where it goes beyond what is "forced" and into
what is "optional" in the real game, most of the time.

• Re: Two interesting questions about versions of Crafty Uri Blass 07:21:09 12/04/03
  • Re: Two interesting questions about versions of Crafty Robert Hyatt 08:29:52 12/04/03
    • Re: Two interesting questions about versions of Crafty Uri Blass 09:04:40 12/04/03
      • Re: Two interesting questions about versions of Crafty Robert Hyatt 09:35:13 12/04/03
• Re: Two interesting questions about versions of Crafty Matthew Hull 06:49:30 12/04/03
  • Re: Two interesting questions about versions of Crafty Robert Hyatt 08:31:25 12/04/03

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