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Subject: Re: Engines valutation question

Author: Uri Blass

Date: 06:14:49 08/03/04

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On August 03, 2004 at 09:04:13, Anthony Cozzie wrote:

>On August 03, 2004 at 04:54:11, morphy wrote:
>
>>Why the valutation is always referred to the material advantage (where a pawn in
>>more is the unit) and we can't have a valutation in tems of percentage of
>>probability for winning and drawing?
>
>Because having more material greatly increases your chances for winning?
>
>I think the scales are pretty equivalent:
>
>For Zappa:
>
>0.0 means 50/50 (assuming equal strength opponent)
>
>+1 means 70% chance to win or so.
>
>+3 is about 95%
>
>+6 = 99.9%
>
>anthony

No they are not equivalent and probabillity gives more information.

0.0 can mean 100% draw and can mean 40% chances for white and 40% chances for
black and only 20% for draw.

You may want to prune the first 0.0 and extend the second 0.0

Uri



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