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Subject: Re: The usefull-ness of PVS

Author: Michel Langeveld

Date: 08:00:55 01/14/04

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On January 14, 2004 at 09:55:00, Stan Arts wrote:

>Hoi Michel
>
>I wonder, does TSCP, or your version have an aspiration search at the root?
>If not, do you get similair large differences between PVS and regular alpha-
>beta when allready using an aspiration window?
>What I mean is, if you do not generate captures in q-search that won't raise
>the score anywhere near enough, then I imagine there'll be a lot more nodes
>in q-search with regular alpha-beta with infinite window, then with the
>minimal windows PVS creates in the searchtree ?
>
>So my question is basicly if most of the savings from using PVS in your case
>come from less nodes spent in q-search or mostly elsewhere.
>
>Greetings,
>Stan

No I don't have aspiration windows yet. I will try to add it and test again or
would you like me also to count the % of nodes in QSearch?



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