Computer Chess Club Archives




Subject: Re: no more comments???

Author: Sune Fischer

Date: 03:03:27 07/26/02

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On July 26, 2002 at 04:12:41, Andrzej Nagorko wrote:

>On July 25, 2002 at 18:01:49, Robert Hyatt wrote:
>>That is a bit like my old incremental move generation.  I would make a move
>>and update everything so that generating moves was always trivial.  The problem
>>is that you make a move, update the stuff, then get a hash hit and don't
>>use the updated info at all.  I gave up on that and decided to just update
>>exactly when it is needed...
>  There is easy workaround for this problem. You can calculate hash key of new
>position before making move and check hash table before call to make_move.

Yes in the cases where you can return the score it should work (good idea!:),
but not if you only get the move, at least not if you have incrementally updated


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