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Subject: Re: Rybka 32-bit is number one in CEGT rating list

Author: Uri Blass

Date: 16:09:43 12/07/05

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On December 07, 2005 at 18:51:01, James T. Walker wrote:

>This information only makes me suspicious of CEGT testing.  I'm only running
>blitz test but this engine is truely strange.  Against Shredder 9UCI it scored
>about 145 Elo higher.  Against Fritz 8 it scored 50 Elo lower.  I only have 266
>games so far but Rybka's rating now is about 33 Elo below Fruit 2.2.1 and about
>3 Elo below Toga II 1.0.  I'm playing Rybka without an opening book since it
>comes without one.  I don't know which book/books are being used by different
>testers here but it does seem to indicate that almost any book is better than
>nothing.
>Jim
I am not surprised that you get different results when you test different
things.

differences:

1)CEGT do not test with original opening book
2)CEGT test with ponder off and you test with ponder on
3)CEGT test x minutes/40 moves when you test blitz games

Uri



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