Author: William Bryant
Date: 19:19:04 02/24/99
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On February 24, 1999 at 21:44:34, Larry Griffiths wrote: >William, > >Very nice output! May I inquire as to how you are able to retain >the principle continuation when using hash tables? Mine seems to >get messed up when using a hash table. > >Larry :-} I don't very often at the lower plies. Note that at 18 plies on the first example, the principle continuation is only 5 moves long. The longer PC(or PV as case may be) occurs when the search goes beyond the previous hashed search and starts to back up the moves. I am trying a suggestion of Dr. Hyatt's and not hashing the QSearch code, trying to keep the QSearch lean. He also suggest rebuilding the the PV from the hash table entries if they are not overwritten. I may try this soon (on the list, a long list :) ) but I am concerned about that reduction in speed it may require. If you come up with a good trick or suggestion, let me know. William wbryant@ix.netcom.com
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