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Subject: Rybka in test suites (strength is confirmed)

Author: Jouni Uski

Date: 05:38:40 12/07/05


Tactically Rybka is not weak. Even in standard "very positional" mode it scores
better than e.g. Fruit 2.2.1 is most/all test suites - stunning! Fritz or
Shredder are slightly better in that part of game. But best it's strength is
best confirmed in my 60 position AVOID test suite. Some scores:

Rybka          51
Shredder 9     49
Fritz 9        48
Fruit 2.2.1    40
SOS 5          38
Ruffian 1.0.5  33
Crafty 19.19   31

I have feeling, that best test suite just contains "avoid move" positions and
not finding combinations.

For endgame tests Rybka 1.0 is not suited at all :-)

Jouni



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