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Subject: Re: Draw position?

Author: Kurt Utzinger

Date: 23:21:58 08/20/04

Go up one level in this thread


On August 20, 2004 at 15:44:44, Sean Empey wrote:

>On August 20, 2004 at 12:58:21, Kurt Utzinger wrote:
>
>>On August 20, 2004 at 12:53:00, Robert Hyatt wrote:
>>
>>>On August 20, 2004 at 11:13:10, Kurt Utzinger wrote:
>>>
>>>>Have you seen how well Crafty 19.15 is doing
>>>>in our AT 2004 (90m+30s) tournament?
>>>>[http://www.utzingerk.com/at_2004.htm]
>>>>Kurt
>>>
>>>
>>>No, but that wasn't my point.  In this particular position, this isn't about
>>>"endgame skill".  It is a pure tactical position using endgame tables.  Most any
>>>program with EGTB accessing that works will get the right answer, given enough
>>>time, with no endgame knowledge at all...
>>>
>>>Yace is definitely a great engine, but in this position, I doubt it is any
>>>better than any other engine that probes egtbs...
>>
>>     I am going to test some engines in this position
>>     using the 5men EGTB
>>     Kurt
>
>
>Storm finds it using EGTB's (all 3, 4 and 5) It took around 3.75 minutes using 3
>threads.

       The engines find the mate with 3-/4-men EGTB as well.
       Enclosed the analysis of Shredder 8 once with 4-men EGTB
       and once with 5men EGTB
       Kurt



New game
8/8/8/3b4/5k1p/5N1P/5bPK/8 b - - 0 1

Analysis by Shredder 8: ***5men EGTB***


100...Ke3 101.Kh1 Bg3 102.Kg1 Bb3 103.Kf1 Bc4+ 104.Kg1 Be2 105.Kh1 Kf2 106.Nd4
Bb5
  -+  (-3.80)   Depth: 8/14   00:00:00  25kN, tb=218
  -+  (-3.76)   Depth: 13/15   00:00:01  93kN, tb=958
100...Be4 101.Nd2 Bc6 102.Nf1 Bd7 103.Nd2 Ba4 104.Nf3 Bd1
  -+  (-3.77)   Depth: 13/15   00:00:02  106kN, tb=1079
  -+  (-3.78)   Depth: 13/16   00:00:02  126kN, tb=1207
100...Bc6 101.Nd2 Ke3 102.Nf3 Bg3+ 103.Kg1 Bb5
  -+  (-3.79)   Depth: 13/16   00:00:02  128kN, tb=1238
  -+  (-3.77)   Depth: 15/18   00:00:04  331kN, tb=2839
100...Be4 101.Nd2 Bd3 102.Nf3 Bg6 103.Nd2 Bd4 104.Nf3 Bc3
  -+  (-3.78)   Depth: 15/18   00:00:04  349kN, tb=2952
  -+  (-3.78)   Depth: 15/18   00:00:05  369kN, tb=2984
100...Ke3 101.Kh1 Ke2 102.Kh2 Bb7 103.Kh1 Kd3 104.Kh2 Bg3+ 105.Kg1 Ke3
  -+  (-3.79)   Depth: 15/18   00:00:05  376kN, tb=3056
  -+  (-3.79)   Depth: 15/18   00:00:05  387kN, tb=3222
100...Ke4 101.Kh1 Bc6 102.Kh2 Kd5
  -+  (-3.80)   Depth: 15/19   00:00:06  442kN, tb=3672
  -+  (-3.80)   Depth: 15/19   00:00:06  474kN, tb=3734
100...Bb7 101.Nd2 Ba7 102.Nf3 Ke3 103.Nxh4 Kf2 104.Nf3 Bb8+ 105.Kh1 Bd5 106.h4
Kg3 107.h5 Bf4 108.Kg1 Bc4 109.Nh2 Be3+ 110.Kh1 Bd3 111.h6 Bc2 112.h7 Bf4
  -+  (-3.81)   Depth: 15/19   00:00:06  499kN, tb=3929
  -+  (-#150)   Depth: 27/36   00:04:35  44581kN, tb=427169




Analysis by Shredder 8: ***4men EGTB***

1...Be6 2.Nd2 Ke3 3.Nf3 Bb3 4.Kh1 Kf4 5.Kh2 Bd5 6.Nd2 Bd4 7.Nf3 Bf6 8.Nd2
  -+  (-3.80)   Depth: 10/13   00:00:00  48kN, tb=113
  -+  (-3.80)   Depth: 14/14   00:00:01  137kN, tb=575
1...Bf7 2.Nd2 Ke3 3.Nf3 Be6 4.Kh1 Kf4 5.Kh2 Bd5 6.g4
  -+  (-3.81)   Depth: 14/14   00:00:01  142kN, tb=579
  -+  (-3.81)   Depth: 15/19   00:00:01  296kN, tb=900
1...Be6 2.Nd2 Bf7 3.Kh1 Ke3 4.Nf3 Bg3
  -+  (-3.82)   Depth: 15/19   00:00:01  303kN, tb=943
  -+  (-3.78)   Depth: 16/19   00:00:02  500kN, tb=1452
1...Bf7 2.Kh1 Ba7 3.Nxh4 Ke3 4.Nf5+ Kf2 5.Nh6 Bd5 6.h4
  -+  (-3.79)   Depth: 16/19   00:00:02  512kN, tb=1483
  -+  (-4.03)   Depth: 21/28   00:00:11  3956kN, tb=9627
1...Ke3 2.Kh1 Ke2 3.Nh2 Bg3 4.Ng4 Bf4 5.Kg1 Bb8 6.Kh1 Ba7
  -+  (-4.04)   Depth: 21/30   00:00:14  5215kN, tb=15296
  -+  (-4.04)   Depth: 23/32   00:00:23  8987kN, tb=25414
1...Bb7 2.Nd2 Ba7 3.Nf3 Ke3 4.Nxh4 Kf2 5.Nf3 Ba6 6.Nd2 Bb8+ 7.Kh1 Bd3 8.h4 Bf4
9.Nf3 Bf1 10.Ne1 Kxe1 11.Kg1
  -+  (-4.05)   Depth: 23/32   00:00:30  11810kN, tb=34013
  -+  (-#32)   Depth: 30/42   00:07:09  200732kN, tb=768076







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