Computer Chess Club Archives




Subject: Re: Repeatability (questions for Omid)

Author: Gian-Carlo Pascutto

Date: 06:39:54 12/20/02

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On December 19, 2002 at 08:56:45, Dan Andersson wrote:

>There is a paper about alpha-beta conspiracy search. The idea is simple. You use
>fractional extensions. And have two depth variables one for each side. Then you
>deduct less than a ply based on some criterion. The paper used a sigmoid
>function based on the mobility for the side to move. And you continue to search
>deeper as long as one of the depth measures is above zero. I really like this
>idea. It is easy to implement.
>MvH Dan Andersson

It's not so easy to implement correctly IMHO, and it works like shit.


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