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Subject: Re: Can anyone find this Mate in Eight? (yes)

Author: Heiner Marxen

Date: 11:54:27 04/08/00

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Here is what the current version of Chest has to say (K7-600 335 MB):
CHEST version 3.20, 16-Jan-2000
Options = -sSLuuu

W:  Ka6 Rd7 Bc3 Bf5 Nc2 Ne4 Pe2 Pe6 Pf7 Pg4 (10)
B:  Kf4 Ra8 Bb1 Bh6 Nh7 Nh5 Pa7 Pc7 Pe7 Pf6 Pf2 (11)
FEN: r7/p1pRpP1n/K3Pp1b/5B1n/4NkP1/2B5/2N1Pp2/1b6 w - -

 Bd2+ Ke5 Ba5 Rc8 f8=N  Bxf8 Bc3+  Kf4 Bd2+ Ke5  Ne3  Ba2  Bc3+ Kf4  Ng2#
                                                      Bd3+ Rxd3 =*=  Nc4#
                                                      -*-  Nc4#
                        Nxf8 Bc3+  Kf4 Rd5  f1=N Rd3  Nd2  Rf3+ Nxf3 e3#
                                                      Ne3  Rxe3 =*=  Rf3#
                                                      Nh2  Rf3+ Nxf3 e3#
                                                      -*-  Rf3#
                                            -*-  Bd2#
                        Nf4  Bc3#
                        Rxf8 Bxc7#
                        -*-  Ng6#
              Bf4 Bc3#
              Nf4 Bc3#
              c5  Bc7#
              c6  Bc7#
              -*- Bxc7#

end of solution tree (no duals in subtrees with depth <= 3)
Total Time (virt) = 407.740 sec (ca. 6.8 min)

[ For brevity I have omitted the refutation table. ]

If you have more such jobs, you should consider to get your own Chest copy.
It is really good for this type of job.

Heiner Marxen   heiner@drb.insel.de     http://www.drb.insel.de/~heiner/



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