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Subject: Re: hard? opposite bishops ending

Author: Chris Taylor

Date: 11:25:01 09/19/01

Go up one level in this thread

On September 19, 2001 at 07:03:14, Chris Taylor wrote:

>On September 19, 2001 at 01:10:00, Robin Smith wrote:
>
>>Can any programs solve this ending?
>>
>>[D] k7/8/4p3/7P/8/3P4/1Bb4P/K7 w - - 0 1
>>
>>Kazantsev, 1950 study
>>
>>Solution: 1.Bh8!
>
>Running on PIII 733
>Crafty 18.10 in Chessbase 272Mb hash. 3,4,5 piece bases.
>Crafty is still running, so who knows?
>
>k7/8/4p3/7P/8/3P4/1Bb4P/K7 w - - 0 1
>
>Analysis by Crafty 18.10:
>

Crafty stayed the same so, i changed to Junior 6.
Fritz 6 - Taylor,C
k7/8/4p3/7P/8/3P4/1Bb4P/K7 w - - 0 1

Analysis by Junior 6.0:

1.d4 Kb7 2.Bc1 Kc6 3.Bf4 Kd5 4.Be5 Bf5 5.h6 Ke4
  ±  (1.07)   Depth: 3   00:00:00
  ±  (0.81)   Depth: 18   00:00:00  247kN, tb=3
1.Bc1 Bxd3 2.Kb2 e5 3.Kc3 Bf5 4.Kc4 e4 5.Be3 Kb7 6.Kd4 Kc7
  ±  (0.92)   Depth: 18   00:00:02  702kN, tb=66
1.Bg7 Bxd3 2.Kb2 Bf5 3.Kc3 Bg4 4.h6 Bf5 5.Kd4 Bh7 6.Ke5
  ±  (0.98)   Depth: 18   00:00:02  944kN, tb=85
1.Bf6 Bxd3 2.Kb2 Bf5 3.Kc3 Kb7 4.Kd4
  ±  (1.00)   Depth: 18   00:00:03  1115kN, tb=111
  ±  (0.80)   Depth: 24   00:00:22  8676kN, tb=2623
1.Bg7 Bxd3 2.Kb2 Kb7 3.Kc3
  ±  (0.82)   Depth: 24   00:00:29  11187kN, tb=3635
1.Bc1 Bxd3 2.Kb2 e5 3.Kc3 Bh7 4.Kc4 Kb7 5.Kd5 e4 6.Be3 Kc7 7.h6 Kd7 8.Ke5 Ke7
9.Kf4
  ±  (0.88)   Depth: 24   00:00:44  17237kN, tb=6613
  ±  (0.83)   Depth: 26   00:01:16  30598kN, tb=14337
1.Ba3 Bxd3 2.Kb2 Bh7 3.Kc3 e5 4.Kc4 Kb7 5.Kd5 e4 6.Bc5 Kc7 7.h6 Kd7
  ±  (0.88)   Depth: 26   00:01:47  42067kN, tb=22669
  ±  (0.73)   Depth: 28   00:04:13  99315kN, tb=65134
1.Bc1 Bxd3 2.Kb2 e5 3.Kc3 Be4 4.Bb2 Bf3 5.h6 Be4 6.Kd2 Kb7 7.Bxe5 Kc6 8.Ke3 Bh7
9.Kf4 Kd7 10.Bf6
  ±  (0.84)   Depth: 28   00:04:46  112652kN, tb=75599
  ±  (0.96)   Depth: 36   00:37:26  917601kN, tb=1192397
1.Bg7 Bxd3 2.Kb2 Kb7 3.Kc3
  ±  (1.00)   Depth: 36   00:48:22  1213508kN, tb=1619934
  ±  (1.00)   Depth: 39   03:09:14  1814350kN, tb=4115345

(Taylor, Notts 19.09.2001)

>1.d4 Kb7 2.h4 Kc6 3.Ka2 Be4 4.h6 Kd6 5.Kb3 Ke7 6.Kb4 Kf6 7.Kc5 Kg6 8.Bc1 Bd5
>9.h5+ Kh7 10.Kd6 Bc4 11.Bf4 Bd5 12.Bg5
>  ²  (0.53)   Depth: 1/3   00:00:02
>  ±  (0.90)   Depth: 22/46   00:17:28  289700kN, tb=280578
>
>(Taylor, Notts 19.09.2001)

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