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Subject: Re: With diagram hopefully

Author: Ignacio Santos Crespo

Date: 03:36:39 12/20/04

Go up one level in this thread


On December 20, 2004 at 05:28:59, Dennis Breuker wrote:

>On December 20, 2004 at 04:57:53, Peter McKenzie wrote:
>
>>On December 20, 2004 at 04:53:42, Peter McKenzie wrote:
>>
>>[D] 8/p7/7p/4k1p/6PP/P3K3/8/8 w - - 0 1
>>
>>White to play and draw.
>>
>>I saw this one in Informator 45 (1988).
>>1.a4 gxh4 2.a5! is the drawing line given.
>>
>>Warp doesn't get it but maybe other programs do.  Tablebases could be a big help
>>here.
>
>Another try at the diagram
>(changing 4k1p to 4k1p1):
>
>[D] 8/p7/7p/4k1p1/6PP/P3K3/8/8 w - - 0 1
>
>Hope this one is intended...
>
>Dennis

Analysis by Crafty 19.17:

1.h5
  =  (-0.08)   Profundidad: 1/3   00:00:00
1.h5 Rd5
  =  (-0.08)   Profundidad: 2/3   00:00:00
1.h5 Rd5 2.Rf3
  =  (-0.08)   Profundidad: 3/4   00:00:00
1.h5 Rd5 2.Rd3 Rc5
  =  (-0.08)   Profundidad: 4/5   00:00:00
1.h5 Rd5 2.Rd3 a5 3.a4
  =  (-0.08)   Profundidad: 5/6   00:00:00
1.h5 Rd5 2.Rd3 a5 3.a4 Rc5
  =  (-0.08)   Profundidad: 6/7   00:00:00  1kN
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg3
  =  (-0.18)   Profundidad: 7/8   00:00:00  4kN
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg3 Rd3
  =  (-0.18)   Profundidad: 8/10   00:00:00  7kN, tb=18
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg2 Rd3 5.Rg3
  =  (-0.18)   Profundidad: 9/12   00:00:00  13kN, tb=19
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg2 Rd3 5.Rg3 Rd4
  =  (-0.18)   Profundidad: 10/12   00:00:00  22kN, tb=25
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg2 Rc4 5.Rf3 Rb3 6.Re4 Rxa4
  µ  (-1.38)   Profundidad: 11/14   00:00:00  41kN, tb=59
1.hxg5 hxg5 2.Rf3 Rd4 3.Rg2 Re4 4.Rg3 a5 5.a4
  ³  (-0.30)   Profundidad: 11/14   00:00:00  83kN, tb=143
1.hxg5 hxg5 2.Rf3 Rd4 3.Rg2 a5 4.a4 Rc4 5.Rf3 Rb3 6.Re4 Rxa4 7.Re5
  µ  (-1.34)   Profundidad: 12/14   00:00:00  109kN, tb=208
1.hxg5 hxg5 2.Rf3 Rd4 3.Rg2 a5 4.Rf3 a4 5.Rg2 Rc4 6.Rf3 Rb3 7.Re4 Rxa3
  µ  (-1.38)   Profundidad: 13/16   00:00:00  151kN, tb=420
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rg2 Rc4 5.Rf3 Rb3 6.Re4 Rxa4 7.Re5
  µ  (-1.28)   Profundidad: 13/16   00:00:00  244kN, tb=643
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rf2 Rc4 5.Re3 Rb3 6.Rd3 Rxa4 7.Rc4 Ra3
  -+  (-1.54)   Profundidad: 14/19   00:00:00  280kN, tb=707
1.h5 a6 2.a4 a5 3.Rf3 Rd4 4.Rf2 Re4 5.Re2 Rf4 6.Rd3 Rxg4 7.Rc4 Rxh5 8.Rd5
  -+  (-2.60)   Profundidad: 15/20   00:00:01  396kN, tb=1143
1.a4 gxh4 2.a5 Re6 3.Rf2 Rf6 4.a6 Rg5 5.Rf3
  -+  (-1.90)   Profundidad: 15/20   00:00:01  691kN, tb=2057
1.a4 gxh4 2.a5 Re6 3.Rf2 Rf6 4.a6 Re5 5.Rf3 Rd5 6.Rg2 Rc5 7.Rh3 Rb5 8.Rxh4 Rxa6
  -+  (-1.66)   Profundidad: 16/21   00:00:01  841kN, tb=2827
1.a4 gxh4 2.a5 Re6 3.Rf2 Rf6 4.a6 Re5 5.Rf3 Rd5 6.Rg2 Rc5 7.Rh3 Rb5 8.Rxh4 Rxa6
  µ  (-1.26)   Profundidad: 17/23   00:00:02  1048kN, tb=3255
1.a4 gxh4 2.a5 Re6 3.Rf2 Rf6 4.a6 Re5 5.Rf3 Rd5 6.Rg2 Rc5 7.Rh3 Rb5 8.Rxh4 Rxa6
  ³  (-0.26)   Profundidad: 17/23   00:00:02  1164kN, tb=3325
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 17/23   00:00:02  1367kN, tb=3717
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 18/27   00:00:03  1601kN, tb=4623
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 19/29   00:00:03  1963kN, tb=5029
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 20/32   00:00:05  2481kN, tb=5847
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 21/34   00:00:06  3965kN, tb=6432
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 22/38   00:00:10  7285kN, tb=7529
1.a4 gxh4 2.a5 Rd5 3.Rf3 h3 4.Rg3 h2 5.Rxh2 Rc5 6.Rh3 Rb4 7.Rh4 Rxa5
  =  (-0.01)   Profundidad: 23/41   00:00:16  14375kN, tb=8865

AMD64 3200+ 5-men tablebases

Ignacio



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