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Subject: Re: Binary Book Creation

Author: Robert Hyatt

Date: 14:18:18 06/21/00

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On June 21, 2000 at 12:05:47, Gian-Carlo Pascutto wrote:

>On June 21, 2000 at 09:15:25, Robert Hyatt wrote:
>
>>The problem is that there are tricks to deal with, and this handles most of
>>the problems handily, without stepping into other problems.  You certainly >don't want to allow your opponent to do this:
>>
>>e4 e5 nf3 Nc6 Nf1 Nb8 as you are nearing a draw without thinking at all. .
>
>Horrors !
>
>My program falls for this trick. I wouldn't be surprised if there were
>others too.
>
>--
>GCP


There is a quick fix.  Add a repetition check test in your book move code.  If
you find a book move, make it, and get a repetition indication, don't play it.
If there are other moves, try one of them.  If there are no others, then fall
out and let your search find the draw, or a move that doesn't draw.

Or use the parent/child trick...



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