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Subject: Question: Null Move Fail High and Hash Table

Author: William Bryant

Date: 09:06:57 11/29/99


A thought occured to me (which can be a dangerous thing).

When a null move fails high (produces a cutoff), this value is stored in the
hash table.  Should the depth of the hash table entry be the current depth
of the search, or the depth used for the Null search (ie depth - null
reduction).

I have traditionally used depth, and am now testing with a depth - null depth to
see if it helps/hurts.

I would appreciate comments from others who have tried or considere this.

William
wbryant@ix.netcom.com



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