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Subject: Re: More testing of CM_Utzinger

Author: Graham Banks

Date: 03:46:11 05/03/01

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On May 03, 2001 at 06:26:19, Kurt Utzinger wrote:

>You are right: The CM8_Utzinger is much better at longer time controls.
>
>But please again note my already at CCC published objection against playing
>Chessmaster.CMP's against each other:
>
>You will have noticed that I do never play CM8_default vs CM8_Utzinger or
>similar matches between the various CM8_personalities. It is my deepest
>conviction that such trials are more or less a waste of time. At first I have
>made this too but soon recognized that whatever settings are used vs other top
>programs, the supposed best CM8_setting at a given time control had [like
>CM8_default] not much chances against Junior6a or most other top programs.
>Furthermore I have investigated about 150 test positions with six CM8_settings
>[CM8 default, and 5 others, no Chessmaster.CMP already defined in CM8] only to
>see that they all were close together. In any case: with these tests it was
>simply not possible to define the best CM8_setting. And funny, Chessmaster_8000
>default took second/third place in these tests, the same CM8 which does not
>succeed in the expected manner against other top programs. All these tests and
>trials confirmed to me that it is somewhat useless to find the top CM8_setting
>by let different CM8_personalities playing each other. And frankly spoken, who
>in the chess world is interested in knowing that [let's say as an example] the
>CM8_Titan [nothing against you Graham!] wins most of the time against any other
>Chessmaster 8000 personality. Such a statement does not bring anything if the
>same CM8_personality does not obtain fairly good results [at least 50 % is
>required] against other top programs like ChessTiger14, Crafty, Fritz6,
>GambitTiger2, Gandalf432h, Hiarcs732, Nimzo732, Shredder5 and so on.
>
>Kurt

I beg to differ regarding the testing of settings against each other. Maybe over
time I might change my opinion! The main thing to take into account when testing
settings against each other is to use a variety of time controls. I would also
like to know the opinions of some of the programmers on this issue, but I guess
that many of them don't bother to read CM8 threads.
Graham.



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