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Subject: Re: Rybka 1.0 Beta 32-bit vs Deep Shredder 9 UCI : 40 moves in 2 hrs

Author: Uri Blass

Date: 13:55:52 12/10/05

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On December 10, 2005 at 16:19:19, Sune Larsson wrote:

>Hi Gordon,
>
>I just had a look at game 4 in your match Rybka-Shredder. Rybka was white here
>but found itself very uncomfortable after the opening. For white, this is a very
>passive variation - early giving up lots of space to black - leading to a
>cramped position for white. Obviously that didn't suit Rybka at all. It couldn't
>find a plan but instead tried to shuffle pieces for a standstill.
>16.Nf3-h4, 17.Nh4-f3, 18.Nf1-d2, 19.Nd2-f1, 20.Nf1-d2 etc...

I think that the problem is that the variation is simply not good for white



>
>1) You clearly see the value of a book suited to the engine.

No

The problem is not book that is not suited to the engine.
This line is simply not good for white and I suspect that even best moves are
not going to give Rybka more than a draw against shredder.

I think that black is slightly better after the opening book moves and it is not
acceptable to have a book that lead to inferior position with white.

Uri



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