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Subject: Re: Detecting three-fold repetition?

Author: Tom Kerrigan

Date: 15:23:10 07/17/00

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On July 17, 2000 at 17:42:35, Dann Corbit wrote:

>On July 17, 2000 at 17:25:09, Tom Kerrigan wrote:
>[snip]
>>The point is that TSCP loses games due to 3-rep draws.
>
>Can't lose more than half a point through that defect.
>;-)
>
>>If 3-rep draws are not detected during search, what will keep it from losing
>>these games?
>
>You could make an icky hack that hardwires an eval of 0.00 to any position
>already played twice.
>
>Hash, if you must.  It will give TSCP a monster boost, anyway.  Probably bump it
>up another category.
>
>Suggestion:
>TICP:
>Tom's Intermediate Chess Program.
>
>Then all the objections vanish.
>;-)

Happily John Stanback has saved the day with a small, unobtrusive function that
counts the number of repetitions of the current position. Expect to find it in
the next version of TSCP. :)

-Tom



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