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Subject: Re: Futility Pruning off?

Author: Robert Hyatt

Date: 11:59:23 01/21/04

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On January 21, 2004 at 12:45:59, Tord Romstad wrote:

>On January 21, 2004 at 05:02:37, Robert Allgeuer wrote:
>
>>Do I conclude correctly that futilty pruning is off? Is there a specific reason
>>for that?
>
>Possibly that it simply doesn't work very well?  The idea has always looked
>dubious to me, and my own experiments confirm this.  There is a speedup, but
>it is not worth the risks.
>
>As always, the results may vary from engine to engine, but I suppose Bob has
>found that it doesn't work for him either.
>
>Tord


Correct.  I didn't like it myself after lots of testing.  It looks good on
test sets, but you don't win games by doing well on test sets.



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