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Subject: Re: probably a mistake in arasan test suite

Author: Joachim Rang

Date: 08:09:33 06/23/04

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On June 23, 2004 at 09:27:16, Fabien Letouzey wrote:

>On June 23, 2004 at 09:24:25, Uri Blass wrote:
>
>>On June 23, 2004 at 09:19:17, Fabien Letouzey wrote:
>
>>>All checks + single replies.  Remember I don't use fractional-ply extensions.
>
>>Does it mean that fruit's search may explode when there are a lot of checks that
>>force a single reply and that Fruit may find mate in 30 at depth 1 when all the
>>moves before the mate are checks that force a single reply?
>
>>Uri
>
>Yes and yes.
>I think it is useful for perpetual checks.
>
>Fabien.

but you aren't exploiting all possibilities of that if you don't tell Fruit that
not all perpetuals lead to 3-fold-repetition:

[D]2R5/p3k3/1p2qrpp/1P2Q3/8/4PP1P/5K2/8 w - - 0 1

here Fruit does not see, that Qb8 leads to a perpetual.

regards Joachim




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