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Subject: Re: check this position too! - a minor modification with major consequen

Author: Daniel Clausen

Date: 03:16:53 02/12/04

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On February 12, 2004 at 06:03:37, Uri Blass wrote:

[snip]

>The main point is that programs should not evaluate unclear position as winning.
>
>Black has a big advantage without capturing the pawn so there is no reason to
>capture h3 and get unclear pawn endgame.
>
>evaluating Rxh3 Rh2 as a win for white without search is a msitake but
>evaluating it as a win for black is also a mistake that cause Crafty to miss a
>simple win by not capturing the pawn.

And again I'm reminded of the posts some months ago, in which someone suggested
to have some kind of an uncertainty-value together with a score. In this case,
the machine could decide that it's better to play a move with score +1 (5%
uncertainty) than a move with score +2 (70% uncertainty).

Probably not easy to implement but I like the idea nevertheless, and it's the
way humans play. (at least I do - although I can usually choose between 90% and
95% uncertainty ;)

Sargon



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