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Subject: Re: About the value of an opening book

Author: David H. McClain

Date: 14:52:39 10/14/04

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On October 14, 2004 at 16:59:54, Uri Blass wrote:

>Frank Quisinsky did a tournament between programs
>
>GreenLight was leading with 6.5/8
>Dragon had 2.5/8
>
>see http://f27.parsimony.net/forum67213/messages/3474.htm
>
>He discovered that both programs played without opening book so he repeated
>their game
>
>Results here:
>
>http://f27.parsimony.net/forum67213/messages/3496.htm
>
>GreenLight 4.5/8
>Dragon 2.5/8
>
>You can see that the programs scored 2 points more without opening book.
>
>I can say about it that it is possible that opening book has negative value not
>because of bad moves but because the programs simply does not know how to
>continue after book when it could know to continue better without book.
>
>Uri

Uri,

Two of the strongest programs on Playchess are "purepower" and "auryn," both
single processor machines.  They are top programs because they work diligently
on their opening books. There are many dual and quad processor machines on
playchess that can attest to this.




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