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Subject: Re: Endgame - Test (Diagram); Shredder 3 find 1. - a5 !

Author: Ed Schröder

Date: 11:52:56 09/14/00

Go up one level in this thread


On September 14, 2000 at 13:07:42, Dieter Buerssner wrote:

>On September 14, 2000 at 11:12:49, Eduard Nemeth wrote:
>
>>On September 14, 2000 at 10:04:32, Severi Salminen wrote:
>>
>>>>Which program does find the save boarder (with black)?
>>>>And how ?
>>>>
>>>[D]8/8/p2k3p/1P1p1pp1/P1r5/1R1K1PP1/7P/8 b - -
>>>>
>>>>wKd3,Rb3,Pa4,b5,f3,g3,h2/bKd6,Rc4,Pa6,d5,f5,g5,h6
>>The Position is a composition from me.
>>
>>Shredder 3 find: 1.-a5 2.b6 2.-Rb4 3.Rxb4 axb4, and draw !
>
>How long did Shredder need? Yace needs almost one hour on AMD K6-2 475, and
>produces the above PV. Before this, it favored the losing pawn trade, but
>the scores of a5 and axb where close for quite some time. At depth 16, axb
>failed low.
>
>- Dieter

Century 3.0

00:00:57 12.00  -0.10   1..axb5 2.axb5 Rc7 3.Kd4 Rc4 4.Ke3
                        Kc7 5.b6 Kb7 6.Rb5 f4 7.gxf4 gxf4
                        8.Kd3 Rc6  (35)

00:02:11 13.00  -0.36   1..axb5 2.axb5 Rc7 3.b6 Rb7 4.Kd4
                        Kc6 5.f4 gxf4 6.gxf4 h5 7.h4 Kd7  (85)

00:05:58 14.00  -0.62   1..axb5 2.axb5 Rc7 3.b6 Rb7 4.Kd4
                        f4 5.gxf4 gxf4 6.Rb5  (244)

00:09:33 14.11  -0.62   1..a5
00:10:18 14.11  -0.12   1..a5 2.b6 Rb4 3.Rxb4 axb4 4.a5
                        Kc6 5.Kc2 d4 6.Kd3 b3 7.Kd2 Kb7
                        8.Kc1 d3 9.h3 f4 10.gxf4  (573)

00:13:04 15.00  -0.17   1..a5 2.b6 Rb4 3.Rxb4 axb4 4.a5
                        Kc6 5.Kc2 d4 6.h3  (683)

00:27:02 16.00  0.00    1..a5 2.b6 Rb4 3.Rxb4 axb4 4.a5
                        Kc6 5.Kc2 d4 6.h3 h5  (1295)

Ed



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