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Subject: Re: Value of a pawn

Author: Robert Hyatt

Date: 17:56:06 01/11/98

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On January 11, 1998 at 18:12:56, Howard Exner wrote:

>Does anyone know how the different programs rate the value of a pawn?
>I think someone (probably Ed Schroder) said that Rebel's score
>is about 0.75.
>
>Does it make sense to compare eval scores across programs? ie:"this
>program does better here because of its +4.55 eval versus this
>other program at +3.62". In reality for program X, 4.55 might be 4 pawns
>while program Y at 3.62 could be 5 pawns. Is this right?

This is difficult.  But you are really asking the wrong question.  IE,
suppose Rebel does this:  P=.8, N=3.0, B=3.3, R=5.0 and Q=9.0.  And
suppose
I did something like this:  P=1.0, N=3.5, B=3.8, R=5.5 and Q=10.0...
what
would that mean?  If you notice,  these are actually about equal, as far
as material goes...

So the value of a pawn is not the real issue...  it is the value of a
unit
of material...  which makes it harder to understand..



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