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Subject: Re: Nice mate in 8 for engines!

Author: Kai Skibbe

Date: 06:01:19 12/27/03

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On December 27, 2003 at 08:10:23, Ingo Bauer wrote:

>Hallo
>
>[D]5rk1/p4p1p/6b1/q7/6P1/1P6/Q4p1P/K1R5 b - -
>
>This nice position was reached by YACE against The Baron on ICC. It seems that
>some engines have a problem to find a mate, not to speak of a mate in 8!
>
>

Anaconda 1.4 needs 16 seconds on an Athlon64 3200+ to see the mate in 8.

Kai



Neue Partie
5rk1/p4p1p/6b1/q7/6P1/1P6/Q4p1P/K1R5 b - - 0 1

Analysis by Anaconda 1.4:

1...De1
  -+  (-12.43)   Tiefe: 5/23   00:00:00  25kN
1...De1 2.Db2 Tc8
  -+  (-16.42)   Tiefe: 5/23   00:00:00  30kN
1...De1
  -+  (-17.03)   Tiefe: 6/35   00:00:00  41kN
1...De1 2.Db1 Lxb1 3.Txb1 Da5+ 4.Kb2 Td8 5.b4 Dxb4+ 6.Ka2 Dxb1+ 7.Kxb1 f1D+
8.Kc2
  -+  (-17.21)   Tiefe: 6/57   00:00:00  70kN
1...De1
  -+  (-17.90)   Tiefe: 7/57   00:00:00  101kN
1...De1
  -+  (-18.90)   Tiefe: 7/57   00:00:00  135kN
1...De1 2.Db1 Lxb1 3.Kb2 Dxc1+ 4.Kxc1 f1D+ 5.Kb2 f5 6.h3 fxg4 7.hxg4
  -+  (-19.69)   Tiefe: 7/57   00:00:00  203kN
1...De1
  -+  (-20.26)   Tiefe: 8/57   00:00:01  316kN
1...De1 2.Kb2 Dd2+ 3.Ka3 Dxc1+ 4.Db2 Dxb2+ 5.Kxb2 f1D 6.g5 Dg2+ 7.Ka3 Dxg5
  -+  (-21.04)   Tiefe: 8/57   00:00:01  568kN
1...De1 2.Kb2 Dd2+ 3.Ka3 Dxc1+ 4.Db2 Dxb2+ 5.Kxb2 f1D 6.b4 Td8 7.g5 Dg2+
  -+  (-21.16)   Tiefe: 9/57   00:00:02  784kN
1...De1
  -+  (-21.68)   Tiefe: 10/57   00:00:02  1183kN
1...De1
  -+  (-22.68)   Tiefe: 10/57   00:00:03  1334kN
1...De1 2.Kb2
  -+  (-22.68)   Tiefe: 10/57   00:00:03  1391kN
1...De1 2.Kb2 Dd2+ 3.Ka3 Dxc1+
  -+  (-22.68)   Tiefe: 11/57   00:00:05  2099kN
1...De1
  -+  (-23.14)   Tiefe: 12/57   00:00:06  2547kN
1...De1
  -+  (-24.14)   Tiefe: 12/57   00:00:06  2664kN
1...De1
  -+  (-28.14)   Tiefe: 12/57   00:00:07  3075kN
1...De1 2.Kb2 Dd2+ 3.Ka3 Dxc1+ 4.Db2 f1D 5.Dxc1 Dxc1+ 6.Ka4 Tb8 7.b4 Lc2+
  -+  (-#8)   Tiefe: 12/57   00:00:16  7430kN

(Skibbe, Hamburg 27.12.2003)



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