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Subject: Re: Effect of opening book

Author: Bo Persson

Date: 11:07:48 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?

It's not so much about strength as about reasonable behaviour for the computer
player. After an initial human

1. e2e4

black just *cannot* spend 3 minutes to calculate the response e7e5. That would
be *boring*!


At least a mini-book is required for the program to be an interesting opponent.



Bo Persson



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