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Subject: Re: pawnendgame kc3!!

Author: Kurt Utzinger

Date: 03:47:33 05/09/02

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On May 09, 2002 at 02:39:13, Vincent Diepeveen wrote:

>Diep - Crafty
>
[D]>8/p1p3p1/7p/1Pk5/P7/1P1K2P1/7P/8 w - - 4 41
>
>kc3!!
>
>regrettably diep didn't care between kc3 and g4 and went
>for g4. Kc3 is a clear win IMHO.
>
>g4 a simple draw.

I am not so sure. The computer program's evaluation after Kc3 or g4 do not much
differ and it could be that the programs see more than all the people here by
simply guessing. Anyway, a most interesting position and I am going to make some
deeper analysis.
Kurt

Hiarcs does not make the winning move 41.Kc3 for the correct reason and the
program does not understand the position. Prove the analyses below:
********************************************************************************************

Utzinger,K - Hiarcs 8
8/p1p3p1/7p/1Pk5/P7/1P1K2P1/7P/8 w - - 0 1

Analysis by Hiarcs 8:

41.g4 Kb4 42.Kc2
  +-  (1.92)   Depth: 1   00:00:00
  +-  (1.83)   Depth: 2/7   00:00:00
41.Kc3 h5 42.b4+ Kd5 43.a5 g5 44.Kd3 h4 45.gxh4 gxh4 46.h3 Ke5
  +-  (1.88)   Depth: 2/7   00:00:00
  +-  (2.04)   Depth: 16/33   00:01:16  19971kN, tb=575

(Utzinger, Switzerland 09.05.2002)
*******************************************************************************************
Analysis after 41.g4

Utzinger,K - Hiarcs 8
8/p1p3p1/7p/1Pk5/P5P1/1P1K4/7P/8 b - - 0 1

Analysis by Hiarcs 8:

41...Kb4 42.Kc2 g5 43.Kb2 Kc5 44.Kc3 Kd5 45.Kd3 Kc5 46.h3
  +-  (1.83)   Depth: 1   00:00:00
  +-  (2.04)   Depth: 17/38   00:02:06  31246kN, tb=3639

(Utzinger, Switzerland 09.05.2002)
********************************************************************************************
Neue Stellung
8/p1p3p1/7p/1Pk5/P7/1P1K2P1/7P/8 w - - 0 1

Analysis by Fritz 7: (v 7.0.0.6)

1.g4 Kb4 2.Kc2 Kc5 3.Kc3 Kd5 4.Kb4 Kd4 5.Ka5 Kc3 6.b4 Kc4 7.h4
  ±  (1.35)   Tiefe: 9/15   00:00:00  143kN
  ±  (1.29)   Tiefe: 13/20   00:00:02  1451kN
1.Kc3 h5 2.h3 Kd5 3.Kd3 g5 4.b4 Ke5
  ±  (1.32)   Tiefe: 13/21   00:00:04  2397kN
  ±  (1.32)   Tiefe: 14/22   00:00:07  4098kN
1.g4 Kb4 2.Kc2 g6 3.Kb2 Kc5 4.Kc3
  ±  (1.35)   Tiefe: 14/22   00:00:07  4578kN
  ±  (1.32)   Tiefe: 16/27   00:00:25  15473kN, tb=59
1.Kc3 h5 2.b4+ Kd5 3.Kd3 g5 4.h3 Ke5 5.Ke3 Kd5 6.h4 gxh4 7.gxh4 Ke5 8.a5
  ±  (1.35)   Tiefe: 16/27   00:00:30  18882kN, tb=70
  ±  (1.29)   Tiefe: 18/32   00:02:04  78578kN, tb=1138
1.g4! Kb4 2.Kc2 g6 3.Kb2 Kc5
  ±  (1.32)   Tiefe: 18/32   00:02:22  90901kN, tb=1606
  +-  (1.41)   Tiefe: 18/32   00:02:37  100798kN, tb=1872

(Utzinger, Switzerland 09.05.2002)
********************************************************************************************




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