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Subject: Re: Maybe a mate?

Author: Dieter Buerssner

Date: 22:06:11 12/27/02

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On December 27, 2002 at 17:48:52, David Rasmussen wrote:

>b2r2kr/p1pqb1p1/1p5p/4p3/2P1N1P1/1P2Q3/P3P2P/4KRR1 b - - 0 1
>
>Is this a forced mate? Well, of course it is, it's at least a forced mate in 500
>I should think, but is there a forced mate that a program can find in any
>reasonable time (< a week) or that a human with the aid of a computer could
>find?

Not that it is too interesting. It is a mate in 18 or shorter.

 12.01	 0:00 	  +M18	1...Bh4+ 2.Rg3 Qd1+ 3.Kf2 Rf8+ 4.Qf3 Qd4+ 5.Ke1 Bxg3+
6.Nxg3 Bxf3 7.exf3 e4 8.Nxe4 Qe3+ 9.Kd1 Rd8+ 10.Kc2 Qe2+ 11.Kc1 Qxf1+ 12.Kb2
Qxf3 13.g5

I found this out by just follwing suggested lines with Yace in analyze mode
until mate was seen, and going backward. When white tried a different
alternative, I did the same with this.

Regards,
Dieter




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