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Subject: Re: Piece values in Capablanca's / Gothic Chess

Author: Reinhard Scharnagl

Date: 09:03:51 01/04/04

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Hi Bob,

>After reading the thread started by this bulletin I get the impression that the
>methods discussed have the primary benefit of requiring little computation and
>hence a very small percentage of the microprocessor's time. [also, not very much
>time required to produce the code]

for me the Smirf method as shown here targets only static average piece values.
Its implications for dynamic detail evaluation I have not yet described at my
homesite. But as far as I can see, this is really cost intensive, sorry.

>There are many positions cited and discussed in the printed chess literature
>which show radically different piece valuations applicable to only to the
>specific position being discussed.  As a trivial example, if it is mate in one
>and the final checking move is to be made by a pawn, then the value of that pawn
>is infinite.

There have some levels of evaluating to be distinguished. Tactical combinations
as e.g. matings have nothing to do with average piece values.

>It is not clear to me that the simplified model being used is optimal in terms
>of amount of benefit versus cost.  Perhaps a more complex but more accurate
>model would produce higher engine performance.  I don't know, of course.

I prefer better (and costly) evaluated knots. But a evaluation method should be
based on verifyable assumptions. That is what I am still missing. Therefore I
try to describe a method which could stand practice tests. And I have begun with
average piece values. Here Capablanca's Chess is a good testing field, because
the values of the two fairychess pieces are not fixed by a centuries old
tradition. Tests can show, which basic method seems to fit better.

Regards, Reinhard.



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