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Subject: Re: About history pruning...

Author: Robert Hyatt

Date: 09:53:33 10/31/05

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On October 30, 2005 at 04:21:05, Mridul Muralidharan wrote:

>On October 28, 2005 at 22:32:05, Robert Hyatt wrote:
><snip>>
>>Now it is "dubious forward pruning won't work".  Of course, Shredder, Fruit,
>>Zappa, Chess Tiger, and others all apparently have it working quite well...
>
>Are you sure that Zappa is using forward pruning ?
>I did not see Anthony Cozzie mention this anywhere (for WCCC'05) ...
>Ofcourse , I am not talking about null move here.
>
>- Mridul


He had mentioned it somewhere along the way, yes.  I think that was the addition
to produce zappa 2.0...  Anthony can comment, but the search depths he has
reported during the WCCC certainly support that as well...

Any program that is going beyond 14 or 15 plies in middlegame positions is doing
forward pruning beyond pure null-move...




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