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Subject: Re: 1959 Kashdan endgame study

Author: Howard Exner

Date: 07:55:37 11/13/00

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On November 13, 2000 at 09:27:08, Ricardo Gibert wrote:

>On November 12, 2000 at 21:17:53, Howard Exner wrote:
>
>>This is what Tiger 13 produces when given 5 seconds per side using an Athlon
>>900.
>>
>>1.Kxg3 Kd4 2.h6 Ke3 3.h7 f2 4.h8Q f1Q 5.Qe5+ Kd2 6.Qd4+ Kc2 7.Qf2+ Qxf2+ 8.Kxf2
>>b5 9.h5 b4 10.h6 b3 11.h7 b2 12.h8Q b1Q 13.Qh7+ Kc1 14.Qxb1+ Kxb1 15.h4 1-0
>>
>>Is this on the right track?
>
>This is all correct and it cooks Kashdan's solution to boot! He gives 6.Qf4+
>instead. See my response to Hyatt's post in this thread.
>
>Unfortunately, the idea was to see if programs could find the correct line from
>the beginning position. You got lucky with the method you used.

I should have mentioned that Tiger's output does not reach that far from the
initial position, so there was no way of knowing if the deeper lines were
accurate. I believe it stopped at around move #8. It showed a +2.XX eval.

>If it were
>really a reliable way to analyze a position, chess programs would perform their
>searches in a very different way than they do.
>
>I think without EGTBs, it is a tough position for programs, though Crafty came
>tantalizingly close to producing a correct variation.



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