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Subject: Re: A question about quiescence search

Author: Bo Persson

Date: 05:19:34 10/20/02

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On October 19, 2002 at 21:12:20, Nagendra Singh Tomar wrote:

>I believe we do qsearch to see if there are any hidden surprises (a solution for
>the horizon effect). So the objective of doing a qsearch is to find whether the
>current positions score is really what we think or whether there is a big
>surprise which pulls it down drastically. So if we assume that the score is at
>least the static score then we are losing the advantages of qsearch, the reason
>at first place why we opted to do a qsearch
>

No, the qsearch does not solve *all* of your horizon problems, only some simple
captures. If you only search capture moves, you might miss an important
non-capturing move anyway, like mating the opponents king...

In chess, you don't *have* to capture, so if the exchange looks bad, just pass
and accept the static score!


Bo Persson
bop2@telia.com



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