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Subject: Re: One mate to solve...

Author: Christoph Fieberg

Date: 11:44:47 07/11/01

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On July 10, 2001 at 16:35:23, leonid wrote:

>On July 10, 2001 at 13:43:14, Heiner Marxen wrote:
>
>>On July 10, 2001 at 06:59:18, leonid wrote:
>>
>>>Hi!
>>>
>>>If you would like to solve one mate, you can look into this position:
>>>
>>>[D]r2k3r/BPb1qbPB/q2qq2q/1Nn2nN1/qQQQQQQq/8/q1RRQ2q/3K4 w - -
>>>
>>>Please indicate your result.
>>>
>>>Thanks,
>>>Leonid.
>>
>>Hello Leonid,
>>
>>According to Chest this is a mate in 10, with one solution move:
>
>Good! I had only solution for 11 moves that I found by selective. My brute force
> was not that quick here and took at 8 moves already 2 hours and 33 min.
>Your finding was very handy for me.
>
>Cheers,
>Leonid.
>
>>PV: Qdxd6+ Q7xd6 Nxe6+ Qxe6 gxh8=Q+ Kd7 Qexe6+ Bxe6 Qexe6+ Nxe6 Qxc7+ Nxc7 Rxd6+
>>Ke7 Rb6+ Nd6 Qbxd6#
>>
>>As always, this was done on a K7/600 with 350 MB hash, and used 26.8 minutes.
>>
>>Cheers,
>>Heiner

Interesting position. However, it is not legal (I mean you can not reach it from
the start position). 4 pieces at least have to be hit in case you want to have
18 queens on the board.

Regards,
Christoph



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