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Subject: Re: More about Chessmaster

Author: Christophe Theron

Date: 13:17:50 03/25/98

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On March 25, 1998 at 05:12:01, Kai Lübke wrote:

>I'm currently running the Louguet II suite with Chessmaster 5555 (= CM
>5500 with Walter-Pilz settings and special piece values)
>and already got a very interesting result:
>
>It is a tactical monster, scoring an incredible 285 points on the LCTCMB
>subsuite. For a comparison (hardware: P6-200, 64 MB):

May I insert my own program in the right place?

CM 5555		285
Chess Tiger	270  <<< with 16Mb hash
Rebel 9		255
Hiarcs 6	255
Rebel 8		250
CM 5500		250
Fritz 5.00	245
Junior 4.6	245
Fritz 5.01	240
MChess 7	230
MChess 5	210
Crafty 12.6	205

I suppose you should also insert Genius, which does a good job on the
CMB. I guess Ferret would also get a good ranking (Bruce?).

As usual, I would like to say that this test has to be taken with a
grain of salt. While the LCT is quite useful in giving approximate (+ -
80 pts) ranking of a NON MODIFIED program tuned to play REAL games, it
is easily possible to get a very high score in the CMB part by modifying
your program, even if it is a very lousy one. Those LCT "combinations"
are only king attacks combinations, and don't represent statistically
the wide variety of tactical positions.

One of my friend has made a little experiment. He has modified
(increased) all the king attack related extensions in his program. And
so, he scored above 300 (about 85%) in the LCT CMB. Of course, this
version of his program didn't play better at all.

I would like to add that Chess Tiger has not been modified to get a high
score in the LCT CMB. The settings I'm currently using were choosen to
give the best results in real games, not on test suites. I never ran the
WAC or ECM tests for example.


    Christophe



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