Computer Chess Club Archives




Subject: Re: QSearch() as PVS() ?

Author: Tord Romstad

Date: 13:12:08 01/14/04

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On January 14, 2004 at 15:44:56, Matthias Gemuh wrote:

>Does it make sense to use PVS algorithm to implement QSearch ?
>It does not seem to help my engine.

I have very little experience with PVS, but intuitively I would guess that it
doesn't make much difference in the QSearch.  The QSearch is not very deep, and
at most nodes you will have a zero-width window already when you enter the

Have you considered trying MTD(f) instead of PVS?  I am not sure it is any more
efficient in practice, but it is easier to code, and has the additional benefit
of making you feel different, original, interesting, intelligent, handsome and



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