Computer Chess Club Archives




Subject: Re: evaluation tuning tricks

Author: Tord Romstad

Date: 07:25:24 03/17/04

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On March 17, 2004 at 09:55:59, Fabien Letouzey wrote:

>No offense Tord, but I don't understand  why programmers think the move ordering
>is "perfect" if a fail-high move is found first 100% of the time.

Because the percentage of first-move fail-highs is easily measured?  Of course
I agree that the size of subtrees is important, but I don't see how you can
determine how often a fail-high move has a smaller sub-tree than all other
fail-high moves at the same node, except by searching the whole minimax tree.


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