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Subject: Re: One mate to solve.

Author: Angrim

Date: 13:52:34 12/15/01

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On December 13, 2001 at 21:46:41, leonid wrote:

>[D]rqbkqnq1/3N4/QbqNqnq1/Q1R1R1B1/Q1N1Q1B1/Q1r1P1Q1/P1p1K1p1/8 w - -
>
>Please indicate your result.
>
>Thanks,
>Leonid.

Athlon 1.2ghz pn^2 search:
proved that move a6xb6 wins, 11 turns
PN2:775710 evals, 20935 expands,  2.93 seconds

since it took so few nodes, I tried it with pn-search:
proved that move a6xb6 wins, 11 turns
PN:383356 evals, 10178 expands,  1.51 seconds

so, my chess player would find this win in a game at about 6 seconds a move,
since I only spend 1/4 or so of my search time on pn-search.

Angrim



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