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Subject: Re: No material count in Evalualtion idea

Author: Dann Corbit

Date: 20:55:20 11/13/01

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On November 13, 2001 at 23:51:33, Chessfun wrote:

>On November 13, 2001 at 23:08:14, Robert Randolph wrote:
>
>>I am currently working on writing a new evaluation for my program.. I have been
>>contemplating an eval based on positional aspects and no direct material count.
>>
>>For instance, a white knight on H1 would be worth maybe .2, but a white knight
>>on E5 would be worth 3.2 Of course these are my actual eval values, but examples
>>to better iillustrate my idea.
>>
>>Has this been done before with any success, or lack there of?
>>
>>If it was a plausible idea (as i beleive it could be) what would your
>>suggestions be for positional advantages and disadvantages in this system, as
>>they would be fairly differing than those of evals that also rely on material
>>count.
>>
>>-Robert
>
>
>TSCP Tom's simple chess program eval.c seems to address this
>by adding the value of the location of the piece.
>
>If you have a look at eval.c you'll see the square value's
>Tom used.
>
>Although Tom's website
>http://ucsu.colorado.edu/~kerrigat/ appears to be down.
>
>This isn't exactly what your saying, it seems to be
>a similar idea.

Try here:
http://home.earthlink.net/~tckjr/

Lots of programs have a similar idea in use.  I suspect that the value is an
artifact of shallow searches, but I might be wrong about that.



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