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Subject: Re: Effect of opening book

Author: David Mitchell

Date: 05:02:12 09/06/04

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On September 06, 2004 at 07:43:07, Eydun Lamhauge wrote:

>Almost all chess engines today have their own opening book. Is it possible to
>say, how many rating points approx. a chess engine with an average opening-book
>is stronger than the same chess engine without any opening book?

Think of a chess game like walking along the top of a fence rail. Little bobbles
of balance won't throw you off, but one real mis-step and you've fallen.

Not possible to say, in a general way, for instance, what does "average" really
mean in this context? Any specific engine and book could be tested of course,
but a really good, hand tuned and well tested opening book will be a huge help
in stopping quick lost games in a tournament.




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