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Subject: Are over-optimistically evaluations stronger than realistic evaluations?

Author: Drexel,Michael

Date: 16:15:04 04/26/03


Today I started an interesting experiment.
A match Chessmaster 9000 against Shredder 7.04 in Chessbase GUI with
over-optimistically settings for The King 3.23.
With this settings The King engine evaluates his positions almost always as
better for himself, except it is completely lost.

Surprisingly a 30 game match ended:
Chessmaster 9000 - Shredder 7.04:  15.5-14.5 (+12 =7 -11)
5 min, AMD 2200+, ponder off, Remis.ctg, alternate colours

I told The King that the own qeen is better than the opponents qeen, the own
rooks are better than the opponent rooks, the own bishops are better than the
opponent bishops and so on...

Its over-optimistically evaluations dont hurt at all.

The evaluations were way off but it nevertheless won the match and played a lot
of exciting games although it lacks resistance in worse positions.
Chessmaster played very strong in positions it had an advantage.

Therefore I think it should be a good idea to have completely different
evaluations.
For clearly better positions an optimistically evaluation (Shredder obviously
has very high scores in such positions) and for worse positions a more realistic
evaluation.

Michael









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