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Subject: Re: If you like to solve mate from real game...

Author: Heiner Marxen

Date: 11:30:50 01/28/01

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On January 28, 2001 at 12:59:25, Paul wrote:

>On January 28, 2001 at 12:10:55, Enrique Irazoqui wrote:
>
>>On January 28, 2001 at 12:00:13, leonid wrote:
>>
>>>Hi!
>>>
>>>If you like to solve one forced mate from real game, below you have on position.
>>>
>>>[D]r4rk1/ppRn1p2/6pb/1P2pq1p/3N4/P1QPn1Pb/1B1NPP1P/4R1KB b - -
>>>
>>>Played in Brussels in 1937. O'Kelly and Devos.
>>>
>>>Please indicate your result.
>>>
>>>Leonid.
>>
>>Deep Fritz finds a mate in 7 very quickly.
>>
>>Enrique
>>
>>New position
>>r4rk1/ppRn1p2/6pb/1P2pq1p/3N4/P1QPn1Pb/1B1NPP1P/4R1KB b - - 0 1
>>
>>Analysis by DEEP FRITZ   :
>>
>>1...Qxf2+! 2.Kxf2 Ng4+ 3.Kf3 e4+ 4.Kxe4 Ndf6+ 5.Kf3 Nxh2+ 6.Kf2 Nfg4+ 7.Kg1
>>  -+  (-#7)   Depth: 8/29   00:00:01  579kN
>>
>>(Irazoqui, CadaquƩs 28.01.2001)
>
>Yep ... mine says the same in 0.0 seconds :) Last move is Be3x ...
>
>Paul

Chest cannot improve on this.  Its PV is slightly different:
Qxf2+ Kxf2 Ng4+ Kf3 e4+  Kxe4 Ngf6+ Kf3 Ne5+ Kf2 Nfg4+ Kg1 Be3#

Chest needs 95 seconds (K7/600 60MB hash).  Look Paul, your program is
much faster than Chest!  :-)

Heiner



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