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Subject: Re: Can you find the mate

Author: Paul Byrne

Date: 20:16:20 11/24/02

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On November 24, 2002 at 09:20:40, Thomas Blomquist wrote:

>[D]1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - 0 1

This one is well suited to PN search.  Guildenstern says:

ibid kibitzes: gcc run
(kibitzed to 2 people)
G2K(C) kibitzes: >> current changed to run.
G2K(C) kibitzes: > 1W. i=11578 n=250031 p=42 d=15581 t=1.195
G2K(C) kibitzes: > 1W. i=24249 n=500000 p=53 d=25157 t=2.447
G2K(C) kibitzes: > 1W. i=48480 n=1000002 p=82 d=38671 t=4.925
G2K(C) kibitzes: > 1W. i=98517 n=2000016 p=108 d=59397 t=9.980
G2K(C) kibitzes: > 1W. i=198601 n=4000015 p=147 d=65533 t=20.330
G2K(C) kibitzes: > 1W. i=405267 n=8000045 p=230 d=65533 t=41.059
G2K(C) kibitzes: > 1W. i=615159 n=11965120 p=0 d=65535 t=60.902
G2K(C) kibitzes: > 1W. Qxg6 wins! (maxp=269)

60.9 seconds on a 1.2GHz athlon... couldn't say how long Ruffian takes
on this hardware.  :)

Using it's normal search, this is *way* beyond G's ability however.

-paul



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