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Subject: Re: endgame test position

Author: Will Singleton

Date: 19:27:37 02/21/06

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On February 21, 2006 at 22:02:42, Jon Dart wrote:

>[D] 8/6p1/8/1K4p1/P7/1n6/6k1/6B1 w - -
>
>How long to find Bb6 with a + score? (Ba7 is also good).
>
>--Jon

Amateur 2.86 (32 secs, amd 4200+):

15  85   484   3230297  Be3 Kf3 Bxg5 Ke4 Kc4 Na5 Kc5 Nb3 Kb5 Nd4
16  86  1210   8354042  Be3 g4
17  85  1861  12636363  Be3 Kf3
17 170  3270  22212398  Bb6 g6 Kc4 Nd2 Kd3 Nf3 a5 Ne5 Kc3 Nd7 Bd8 Nc5
18 454  8938  60402156  Bb6 Kh1
19 457 15951 108895881  Bb6 Kf3 Kb4 Ke4 Kxb3 Kd5 a5 Kc6 Kc4 Kb7 Kd4 Ka6
                        Ke4 g6 Bc7 Kb7 Bd8 g4

Rybka gets it in < 1 sec, but I didn't see another program get it fast in
limited testing.

Will



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