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Subject: Re: Null move

Author: Robert Hyatt

Date: 15:16:49 02/07/99

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On February 07, 1999 at 17:10:52, Frank Phillips wrote:

>When you fail_high in the null move part of the search is it normal to store the
>score returned in the hash table as the lower bound for this position - since
>presumably making a move would be even better?
>
>If so what draft do you store, (depth-NULL_DEPTH) or depth?


depth.  Otherwise this entry will never be used, because at the top of
search you probe looking for a draft of 'depth' or better.  And the point
of storing this says 'a null move failed high here, so if we do a LookUp()
again, we want to fail high again without doing the null move search.'




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