Author: Eduard Nemeth
Date: 12:07:49 06/02/01
Go up one level in this thread
On June 02, 2001 at 14:16:54, Heiner Marxen wrote:
>On June 02, 2001 at 08:56:05, Eduard Nemeth wrote:
>
>>On June 02, 2001 at 07:44:10, leonid wrote:
>>
>>>Hi!
>>>
>>>If you want to solve one mate then try this:
>>>
>>>[D]1rqkqr2/nPpqpPn1/QQqqqQQ1/Qbb1BBQ1/1N3N2/8/3Q4/R2K2R1 w - -
>>>
>>>Please indicate your result.
>>>
>>>Thanks,
>>>Leonid.
>>
>>Hello Leonid!
>>
>>I give this position to analysis Genius6 (MCS) on P600 with 32 MB hash.
>>
>>Analysis by Genius6:
>>
>>{Mate in 10 Moves after 5:14 minutes)
>>
>>deph 5/17 HV: Mate in 10: 1.fxe8Q Rxe8 2.Nxc6+ Bxc6 3.Nxe6 Nxe6 4.Qxc7
>>
>>Regards,
>>Eduard
>
>Hi Eduard,
>
>On my K7/600 with 350 MB hash Chest needs 28.8 minutes to find that 6 of the
>73 initial legal moves lead to a mate in 9, so this is one of the rare
>cases, where Genius does not give optimal results straightaway.
>Here are the PVs of Chest:
>
>Nxc6+ Bxc6 fxe8Q+ Nxe8 bxc8Q+ Rxc8 Nxe6+ Q7xe6 Qxe7+ Qxe7 Bxd6 Bf3+ Kc1
> Ba3+ Bxa3+ Bd5 Bxe7#
>
>Nxe6+ Nxe6 fxe8Q+ Rxe8 bxc8Q+ Nxc8 Nxc6+ Bxc6 Qxc6 Bb6 Qxe8+ Qxe8 Qg8
> Nf8 Qxe8+ Kxe8 Qgxf8#
>
>bxc8Q+ Nxc8 fxe8Q+ Rxe8 Nxe6+ Nxe6 Nxc6+ Bxc6 Qxc6 Bb6 Qxe8+ Qxe8 Qg8
> Nf8 Qxe8+ Kxe8 Qgxf8#
>
>bxc8R+ Nxc8 fxe8Q+ Rxe8 Nxe6+ Nxe6 Nxc6+ Bxc6 Qxc6 Bb6 Qxe8+ Qxe8 Qg8
> Nf8 Qxe8+ Kxe8 Qgxf8#
>
>fxe8Q+ Nxe8 bxc8Q+ Rxc8 Nxe6+ Q7xe6 Nxc6+ Bxc6 Qxe7+ Qxe7 Bxd6 Bf3+ Kc1
> Ba3+ Bxa3+ Bd5 Bxe7#
>
>fxe8R+ Nxe8 bxc8Q+ Rxc8 Nxe6+ Q7xe6 Nxc6+ Bxc6 Qxe7+ Qxe7 Bxd6 Bf3+ Kc1
> Ba3+ Bxa3+ Bd5 Bxe7#
>
>The huge hash table contributes not more than a factor 2 (for speed).
>Otherwise this is a typical "Leonid": lots of checks, and nearly every move
>is a capture ;-)
>
>Cheers,
>Heiner
Thanks Heiner!
When black 1...Nxe8 play, than this is a mate in 9 moves - correctly!
But, black play 1...Rxe8, than this is a mate in 10 moves.
Kind Regards,
Eduard
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