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Subject: Re: Cutting down my qsearch

Author: Antonio Dieguez

Date: 09:06:11 04/23/01

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>I do not understand what is the reason that a test position will be solved at
>later ply.
>
>
>If you search only captures in the qsearch and if the score is more than a queen
>below alpha then one capture that is not a capture of the king is not going to
>change the fact that the score is below alpha.
>
>Common sense tells me that if you capture in the qsearch more than your first
>capture then the line is illogical because it is possible that the opponet could
>avoid the line by not capturing
>
>Example:Searching a line like 1.PxQ PxP 2.PxR is illogical in the qsearch
>because black may save the rook by a different move.
>
>
>Uri

I don't know exactly neither why a test position will be solved at a later ply
with this prunning but there IS a possibility(if after a capture there is an
extension trigered inside the qsearch, for example an attack or a check or a
pawn in 7th etc)



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