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Subject: Re: which programs let you do a breakdown of the static evaluation?

Author: Alessandro Scotti

Date: 15:19:21 01/24/05

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On January 24, 2005 at 17:36:21, Eric Oldre wrote:

>I'm interested in knowing which free engines will give you a static
>evaluation. (I think that is the term)
>
>ie. given a position, what score would the eval function return for
>this position. NOT doing any search.

Hi Eric,
my engine Kiwi has an "undocumented" command that I use for testing. You have to
run the program in a console window and type "evalt" followed by the name of a
file containing an EPD test suite, for example:
    evalt wac.epd
It should tell you something like "300 positions examined, 0 errors". Then, the
log file "kiwi_log.txt" contains the evaluation for all positions in the suite
(it's the number after the "=" sign).
Note that for each position you will also see a "mirrored" board, which the
program also evaluates to see if there are differences in evaluating black and
white pieces (if so, it's a bug)... very useful stuff for debugging evaluation
code, I think it was Ross Boyd of TRACE that suggested this technique in a
forum.
Of course Kiwi's evaluation is nothing to write home about, but I can't offer
anything better at present! :-)



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