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Subject: Re: One easy mate to solve.

Author: Angrim

Date: 12:25:20 07/21/01

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On July 21, 2001 at 12:35:35, Gian-Carlo Pascutto wrote:

>On July 21, 2001 at 04:39:07, leonid wrote:
>
>>Hi!
>>
>>Probably next position will be easy for every program.
>>
>>[D]knqb2Rq/qbq2Qq1/nq2Nr2/q2QQQ2/2NQQ3/1QrQ4/Rq4BB/q5QK w - -
>>
>>Please indicate your result.
>>
>>Thanks,
>>Leonid.
>
>2.5 seconds
>
>Sjeng: prove
>
>Max time to search (s): 200000
>
>P: 0 D: 100000000 N: 186965 S: 186964 Mem: 7.85M Iters: 2132 MaxDepth: 29
>Time : 2.500000
>This position is WON.
>PV: e6c7 a6c7 d5b7 b6b7 d4a7 a5a7 e4b7 c8b7 g2b7
>
>
>--
>GCP

PN^2 on a 650mhz Athlon.
proved that move e6xc7 wins, 12 turns
PN2:726849 evals, 14938 expands,  3.81 seconds
I assume that sjeng is useing pn^2 for this, so would expect some
similarity.  not quite sure what your N value is, I assume that
"Iters" is the number of times that the search backtracked a value
to the root node?

Angrim



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