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Subject: Re: Quiescence search - checking & check evasion moves and Hsu

Author: Will Singleton

Date: 08:23:19 04/11/02

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On April 10, 2002 at 19:58:18, Marc Boulé wrote:

>>It's possible that a large reported qsearch is either the result of counting
>>nodes differently than other progs, or doing checks, or both.  I count nodes in
>>make_move, and test for checks only in the first ply of qsearch, which results
>>in about 50% qsearch vs internal nodes.
>>
>>It's odd, but I think if people aren't aware of differences caused by how nodes
>>are counted, they may spend time trying to fix things that aren't broken, or
>>vice-versa.
>>
>>Will
>
>This might be a stupid question but how does one use the transposition table
>during q search? Since 50% of nodes are in q search, it would be very usefull (I
>currently don't do any hashing during qsearch). Writing and reading to/from the
>hash table is not legal since the subtrees aren't complete (only captures are
>expanded, and to variable depths).
>
>Marc

I know some people hash during qsearch, but I have not had any luck doing it
myself.  I'd be interested also if someone could give an explanation.

Will




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