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Subject: Re: Difficult endgame test position (but solvable for humans!)

Author: Ernst Walet

Date: 07:30:21 06/10/00

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On June 10, 2000 at 10:03:09, Ernst Walet wrote:
>
>
>Hiarcs 7.32 does quite well here, bij failing low after 17 seconds and resolving
>a better move after 315 seconds on my PIII-450 with 32MB hash.
>
>Analysis by Hiarcs 7.32:
>
>1.Qxe8+ Kxe8
>  +-  (5.38)   Depth: 1   00:00:00
>1.Qxe8+ Kxe8
>  -+  (-5.04)   Depth: 2/6   00:00:00
>1.Qxe8+ Kxe8
>  -+  (-5.04)   Depth: 2/6   00:00:00
>1.Qb7+ Kd6+ 2.Kd2
>  ³  (-0.48)   Depth: 2/6   00:00:00
>1.Qd5 Kf6+ 2.Kd2 Qc8
>  ³  (-0.44)   Depth: 2/12   00:00:00
>1.Qf3 Qc8
>  ³  (-0.42)   Depth: 2/14   00:00:00
>1.Qf3 Kd6+ 2.Kd2 Qe5
>  ³  (-0.36)   Depth: 3/14   00:00:00
>1.Qd5 Qc8 2.a4
>  ³  (-0.34)   Depth: 3/14   00:00:00
>1.Qxe8+ Kxe8
>  ±  (0.98)   Depth: 3/16   00:00:00
>1.Qxe8+ Kxe8
>  ±  (0.98)   Depth: 3/16   00:00:00
>1.Qxe8+ Kxe8
>  ±  (0.73)   Depth: 4/16   00:00:00
>1.Qxe8+ Kxe8
>  ±  (0.73)   Depth: 4/16   00:00:00
>1.Qxe8+ Kxe8
>  ²  (0.35)   Depth: 5/16   00:00:00  6kN
>1.Qxe8+ Kxe8 2.a4 Kd7 3.a5 Kc6 4.Kd2
>  =  (-0.25)   Depth: 5/16   00:00:00  7kN
>1.Qxe8+ Kxe8 2.a4 f4 3.a5 Kd8 4.h4 Kd7 5.h5
>  ³  (-0.34)   Depth: 6/21   00:00:02  159kN
>1.Qxe8+ Kxe8
>  =  (-0.09)   Depth: 7/23   00:00:12  866kN
>1.Qxe8+ Kxe8 2.a4 c3 3.a5 Kd7 4.a6 Kc8 5.a7 Kb7 6.a8Q+
>  +-  (4.61)   Depth: 7/24   00:00:12  891kN
>1.Qxe8+ Kxe8 2.a4 f4 3.a5 Kd7 4.a6 Kc6 5.a7 Kb7 6.h4 Kxa7
>  +-  (4.79)   Depth: 8/25   00:00:13  925kN
>1.Qxe8+ Kxe8
>  +-  (4.50)   Depth: 9/25   00:00:13  987kN
>1.Qxe8+ Kxe8 2.a4 f4 3.a5 Kd7 4.a6 Kc6 5.h4 c3 6.h5 c2 7.Kd2 f3 8.a7 c1Q+ 9.Kxc1
>  -+  (-5.55)   Depth: 9/25   00:00:17  1328kN
>1.Qd5 Kf6+ 2.Kd2 f4 3.Qxc4 Qe3+ 4.Kc2 Qf2+ 5.Kc3 Qe1+ 6.Kb2 Qd2+ 7.Qc2 Qb4+
>8.Kc1 Qe1+ 9.Qd1
>  =  (0.00)   Depth: 9/29   00:05:15  25748kN


Sorry, this is with 64MB hash.

Ernst.



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