[Retros] Andrew's remarkable homebase mate

[Pascal Wassong]

Hello,

the problem by Andrew is solved by Natch in less than 2s.  The version
on h8, with 8.5 moves, takes 15s to be completely verified.  My
computer (at least 2 years old) has an AMD 2.8 Ghz processor, with 1
Mb of ram.

Pascal



>>>>> "Noam" == Noam Elkies <elkies at math.harvard.edu> writes:


    Noam> Andrew Buchanan <andrew at anselan.com> writes:
    >> rnbqkbnr/ppppppp1/8/8/4P3/3B4/PPPPNPP1/RNB3RK w KQkq - id 14;

    Noam> correctly refraining from the usual practice of giving the
    Noam> solution, and later satisfies Nicholas Dupont's request for
    Noam> a similar "good trick!" on a1.  Much the same works on h8:
    Noam> reverse colors and replace Ne7 by Qc6, and it's SPG-8.5 (C+
    Noam> Popeye, with some effort -- it takes the program a few
    Noam> minutes to find the solution, and 1.5 hours to confirm it is
    Noam> unique!).  There should also be an a8 version but it might
    Noam> be beyond Popeye's range; how does Natch do with these?

    Noam> NDE _______________________________________________ Retros
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