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Subject: Re: Futility Pruning

Author: Bert van den Akker

Date: 12:49:18 12/20/02

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On December 19, 2002 at 16:31:19, Andreas Herrmann wrote:

>On December 19, 2002 at 15:09:56, anonymous wrote:
>
>>Could someone please enlighten me as to the purpose and meaning of 'futility
>>pruning' specifically as implemented in the Fritz family of engines? Also, is it
>>better to have this option selected or not in playing blitz games against other
>>computers ? Thanks !
>
>Futility pruning is a pruning technique, created by the developer Dr. Ernst A.
>Heinz of the program DarkThought. Normally a chess program should play better in
>each time control with this pruning extension. But it could be in rare cases
>that a better move (better part of a tree) will be pruned.
>
>have a nice day
>Andreas


Futility pruning is not invented by Dr. Ernst A. Heinz.
It was already used in old programs like Chess 4.5

BvdA




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