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Subject: Re: One mate to solve...

Author: leonid

Date: 15:19:17 04/22/01

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On April 22, 2001 at 17:36:18, Heiner Marxen wrote:

>On April 22, 2001 at 09:57:10, leonid wrote:
>
>>Hi!
>>
>>If you want to solve one mate and say your result, then this is the position:
>>
>>[D]2R2bNn/Rp1n1k1b/1q1ppB1p/1Np1p1p1/2P1P2P/3P2PB/4Q2K/8 w - -
>>
>>If you program says nodes/per/second, please indicate it for this position.
>
>According to Chest this is a mate in 7 moves, with 3 solutions:
>
>Bxe6+ Kxe6 Qg4+  Kf7  Qxd7+ Kg6  Qf5+  Kf7  Nxh6+ Bxh6 Rxb7+ =*=  Nxd6#
>Qh5+  Bg6  Bxe6+ Kxe6 Qg4+  Bf5  Qxf5+ Kf7  Qh7+  Bg7  Qxg7+ Ke6  Re8#
>Rxf8+ Kxf8 Ra8+  Nb8  Rxb8+ Kf7  Qh5+  Bg6  Qxh6  Qd8  Nxd6+ Kxg8 Qxh8#
>
>On Athlon K7 600 MHz with 350MB hash: 950 seconds, 66,144 nodes/sec.
>
>Just for fun I tried this one also with hash table disabled.  Timings:
>depth     with  without
>#  3      0.02     0.02
>#  4      0.42     0.42
>#  5      5.23     6.90
>#  6     62.19   113.11
>#  7    950.10  2285.93
>
>Heiner

Hi, Heiner!

It is look like that we have, in general, very close NPS. With Rebel I could see
that NPS goes somehow down with hash unable.

Salut,
Leonid.





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