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Subject: Re: Hard K+P ending position

Author: Michel Langeveld

Date: 15:45:38 06/29/03

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On June 29, 2003 at 15:30:03, Jeremiah Penery wrote:

>[D]8/5p1p/8/6k1/8/6P1/5PP1/7K w - -
>
>This position was part of a test posted quite some time ago.  All the other
>positions were solved without huge difficulty by programs, but this one was not.
> I've seen a couple of times where programs come up with the first move, but
>they don't really know what's going on.
>
>I want to see a program get the correct line with a decent score (more than +1
>or so).
>
>The line is 1. Kh2 f6 2. Kh1! f5 3. Kg1 Kf6 4. Kf1 Ke5 5. Ke1 Kd5 6. Kd1 Ke5 7.
>Kc2! Kd4 8. Kd2 Ke4 9. Ke2 h6 10. Kf1! Ke5 11. Kg1 Kf6 12. Kh2 Kg6 13. Kh3, and
>now the win is not hard to find.

Nullmover finds the 1st 3 rightmoves:

{0.20h6}*23 65 17173 53828754 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd3 Kd5 6.
Kc3 Kc5 7.Kb3 Kd5 8.Kc2 Kd6 9.Kd2 Ke6 10.Ke2 f5 11.Ke3 Ke5 12.f4+ Kd5 {313443} t
bhits=358486



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