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Subject: Re: a test position for computers(from dark thought-rebel game)

Author: Robert Hyatt

Date: 21:50:51 06/21/99

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On June 22, 1999 at 00:07:56, blass uri wrote:

>8/8/4k3/1p4PP/3P1P2/5b2/8/4K3 w - - 0 1
>
>The target is to find Kd2
>simple for humans but hard for computers that prefer the losing move h6
>
>Dark thought passed the test in WCCC and drew against Rebel
>
>Uri


h6 fails low for me at 15 seconds, and crafty switches to Kd2 at depth=15.
By depth=18, Kd2 is almost zero...  Here is the end of the output, but I'd
play Kd2 given 15 seconds to fail low on h6...

               17     2:20  -0.69   1. Kd2 Bxh5 2. Kc3 Kf5 3. Kb4 Be8 4.
                                    Kc5 Bd7 5. Kb4 Kg6 6. Kc5 Be8 7. Kd5
                                    Bd7 8. Ke4 Bf5+ 9. Kd5 Be6+ <HT>
               17->   2:25  -0.69   1. Kd2 Bxh5 2. Kc3 Kf5 3. Kb4 Be8 4.
                                    Kc5 Bd7 5. Kb4 Kg6 6. Kc5 Be8 7. Kd5
                                    Bd7 8. Ke4 Bf5+ 9. Kd5 Be6+ <HT>
               18     3:49     ++   1. Kd2!!
         (3)   18->   3:59  -0.30   1. Kd2 Bxh5 2. Kc3 Kf5 3. Kb4 Be8 4.
                                    Kc5 Bd7 5. Kb4 Kg6 6. Kc5 Be8 7. Kd5
                                    Bd7 8. Ke4 Bf5+ 9. Kd5 Be6+ <HT>



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