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Subject: Re: If you like to solve a mate...in 30

Author: Dann Corbit

Date: 13:15:02 02/05/01

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On February 05, 2001 at 16:11:07, José Antônio Fabiano Mendes wrote:

>On February 05, 2001 at 15:39:10, Heiner Marxen wrote:
>
>>On February 05, 2001 at 13:32:39, José Antônio Fabiano Mendes wrote:
>>
>>> Mate in 30 ==> Please see: http://www.computerchess.com/shredder_tipps_e.html
>>
>>That one has already been posted in this forum
>>by Vincent Diepeveen on December 27, 2000 at 09:43:05, under the subject
>>Re: What is the most difficult MATE to find for a computer program ???
>>
>>Chest cannot do this one.  There is "no mate in 13" needs already 4.3 hours,
>>while the EBF is 7.9.  So: no chance, currently.
>>
>>Heiner
>
>      Thanks for the information,I missed that message.
> But here is a "Mate in 9",maybe Chest can prove that 9 is indeed minimum.
> [D]8/8/8/8/bB1N4/Np2p2n/p2pP3/k2K4 w
>  Source: http://www.phys.uu.nl/~vdbilt/problems/chessproblem.html   JAFM

Instantaneous:

E:\>chest319 -b -z 9 -M 200 m9.epd
8/8/8/8/bB1N4/Np2p2n/p2pP3/k2K4 w - - acn 11331; acs 0; bm Bc3+; ce 32750; dm 9;
pv Bc3+ b2+ Ndc2+ Bxc2+ Kxc2 d1=Q+ Kxd1 Nf2+ Kc2 Nd1 Bxb2+
Nxb2 Kc1 Nd3+ exd3 e2 Nc2#;



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