Author: Dieter Buerssner
Date: 10:15:54 03/18/01
Go up one level in this thread
On March 18, 2001 at 08:10:33, Sune Larsson wrote:
>
> 4b1k1/1p3p2/4pPp1/p2pP1P1/P2P4/1P1B4/8/2K5 w - - 0 29
>
> Estrin-Ivashin, 1947
>
>
> A bishop ending, same colors - 6 pawns each. Black is stuck with the
> typical bad French bishop. If his king and bishop move too far away,
> the blow Bxg6 followed by f7 will happen. The pawn chain, with its
> spearhead at f6, literally cramps black's two pieces. Estrin finds
> a nice way to make things clear:
>
> 1.b4! axb4 [1.-Bxa4 2.bxa5 followed by Kb2-a3-b4-c5, or 1.-b6 2.bxa5 bxa5
> 3.Bb5!]
>
> 2.Bc2 Bc6 3.Kb2 b6 4.Kb3 Kf8 5.Kxb4 Ke8 6.a5! 1-0
>
> [After 6.-bxa5+ 7.Kxa5 Kd8 8.Kb6 Be8 9.Kc5! Kc7 10.Bd3, black
> is in Zugzwang.]
>
>
> Test: White to move and win. This position might prove hard for chess
> programs to win, but you never know... The total game further down.
AMD K6-2 475, both engines 15 M hash, ponder off
[Event "30 Minuten/Partie + 10 Sekunden/Zug"]
[Site "Engine Match"]
[Date "2001.03.18"]
[Round "1"]
[White "Yace latest version"]
[Black "Shredder 5"]
[Result "1-0"]
[SetUp "1"]
[FEN "4b1k1/1p3p2/4pPp1/p2pP1P1/P2P4/1P1B4/8/2K5 w - -"]
1. b4 {+1.03/19 1:53m} axb4 {-1.10/25 1:27m} 2. Bc2
{+1.05/19 57s} b3 {-1.21/26 1:24m} 3. Bxb3 {+1.05/19 51s}
b6 {-1.09/18 4s} 4. Kb2 {+1.05/19 39s} Bc6 {-1.37/25 2:04m}
5. Bc2 {+1.10/20 35s} Kf8 {-1.36/20 1s} 6. Kb3 {+1.11/20
31s} Bb7 {-1.83/25 57s} 7. Bd3 {+1.12/21 47s} Ke8 {-1.58/24
1:42m} 8. Bb5+ {+1.11/20 41s} Kd8 {-1.84/24 2:15m} 9. Kb4
{+1.13/21 39s} Bc8 {-1.59/23 53s} 10. a5 {+2.14/21 50s}
bxa5+ {-1.53/11 1s} 11. Kxa5 {+2.29/22 33s} Bd7 {-3.40/27
3:16m} 12. Bd3 {+2.52/22 38s} Bc6 {-3.40/25 1:39m} 13. Bc2
{+2.57/21 38s} Ke8 {-5.07/25 1:57m} 14. Kb4 {+2.53/20 47s}
Bb7 {-4.82/23 1:16m} 15. Kc5 {+3.32/21 46s} Ba6 {-2.34/15
1s} 16. Kd6 {+5.89/20 45s} Bf1 {-5.12/24 2:10m} 17. Bxg6
{+6.20/10 26s} Be2 {-8.04/17 2:05m} 18. Bxf7+ {+8.88/16
23s} Kxf7 {-14.55/19 1:46m} 19. g6+ {+11.29/16 34s} 1-0
[Event "30 Minuten/Partie + 10 Sekunden/Zug"]
[Site "Engine Match"]
[Date "2001.03.18"]
[Round "1"]
[White "Shredder 5"]
[Black "Yace latest version"]
[Result "1/2-1/2"]
[SetUp "1"]
[FEN "4b1k1/1p3p2/4pPp1/p2pP1P1/P2P4/1P1B4/8/2K5 w - -"]
1. b4 {+1.10/24 1:56m} axb4 {-1.02/18 1:11m} 2. Bc2
{+1.21/24 1:12m} b3 {-1.05/19 1:04m} 3. Bxb3 {+1.37/24
1:07m} b6 {-1.11/21 1:26m} 4. Kd2 {+1.15/22 1:23m} Bd7
{-1.02/20 46s} 5. Kc3 {+1.21/24 1:04m} Bc8 {-1.04/21 50s}
6. Kb4 {+1.21/25 50s} Ba6 {-1.04/21 45s} 7. a5 {+1.21/24
1:01m} bxa5+ {-1.04/21 34s} 8. Kxa5 {+1.25/17 3s} Bd3
{-1.04/23 26s} 9. Kb4 {+1.23/24 1:07m} Kf8 {-1.05/24 38s}
10. Ba4 {+1.23/24 43s} Kg8 {-1.05/25 48s} 11. Kc5 {+1.23/26
1:03m} Bf5 {-1.05/24 27s} 12. Kd6 {+1.23/25 48s} Kf8
{-1.05/25 39s} 13. Bd7 {+1.23/25 1:17m} Bh3 {-1.05/24 33s}
14. Bc6 {+1.23/12 1s} Bf5 {-1.06/25 35s} 15. Ba4 {+1.23/25
1:42m} Bd3 {-1.06/25 30s} 16. Bd7 {+1.23/24 41s} Bf5
{-1.06/25 34s} 17. Bc8 {+1.23/25 51s} Ke8 {-1.06/23 30s}
18. Kc6 {+1.23/25 1:01m} Bd3 {-1.06/23 22s} 19. Bd7+
{+1.23/18 1s} Kf8 {-1.06/24 41s} 20. Kc7 {+1.23/26 43s} Be4
{-1.06/25 38s} 21. Bc6 {+1.23/26 34s} Bd3 {-1.06/24 27s}
22. Kd7 {+1.23/26 37s} Be4 {-1.06/26 29s} 23. Bb7 {+1.23/26
31s} Bd3 {-1.06/25 22s} 24. Kd6 {+1.23/27 51s} Ke8
{-1.06/25 41s} 25. Kc5 {+1.23/25 55s} Be4 {-1.06/24 29s}
26. Bc6+ {+1.23/25 15s} Kf8 {-1.06/25 31s} 27. Bb5
{+1.23/26 1:14m} Kg8 {-1.06/25 34s} 28. Ba6 {+1.23/25 25s}
Kf8 {-1.06/25 22s} 29. Kd6 {+1.23/25 25s} Ke8 {-1.06/25
33s} 30. Kc7 {+1.23/25 28s} Kf8 {-1.06/26 24s} 31. Bb7
{+1.23/25 30s} Bd3 {-1.06/25 28s} 32. Kd7 {+1.23/25 32s}
Bb5+ {-1.06/25 35s} 33. Bc6 {+1.23/27 33s} Bd3 {-1.06/25
31s} 34. Ba8 {+1.23/26 28s} Bf5 {-1.06/27 35s} 35. Kc7
{+1.23/25 10s} Be4 {-1.06/26 21s} 36. Kd6 {+1.23/26 15s}
Bd3 {-1.06/25 27s} 37. Kc6 {+1.23/17 1s} Ke8 {-1.06/25 20s}
38. Kc7 {+1.23/24 7s} Be4 {-1.06/26 33s} 39. Bc6+ {+1.23/26
42s} Kf8 {Buch 1s} 40. Kd8 {+1.23/27 43s} Bd3 {-1.06/25
18s} 41. Kc8 {+1.23/26 22s} Be2 {-1.06/24 22s} 42. Bb7
{+1.23/26 21s} Bd3 {-1.06/26 29s} 43. Kc7 {+1.23/26 19s}
Ke8 {-1.06/24 25s} 44. Kd6 {+1.23/24 13s} Be4 {-1.06/24
29s} 45. Bc6+ {+1.23/25 19s} Kf8 {-1.06/25 25s} 46. Kc5
{+1.23/26 23s} Bd3 {-1.06/24 20s} 47. Ba8 {+1.23/25 20s}
Bc2 {-1.06/24 20s} 48. Kb4 {+1.00/21 53s} Be4 {-1.06/24
16s} 49. Bb7 {+1.00/24 16s} Ke8 {-1.06/23 23s} 50. Bc6+
{+1.00/24 18s} Kf8 {-1.06/21 29s} 51. Bb5 {+1.01/24 19s}
Kg8 {-0.57/19 14s} 52. Kc3 {+0.80/24 24s} Kf8 {-0.48/21
46s} 53. Kd2 {+0.80/23 41s} Bf5 {-0.04/19 16s} 54. Ba4
{+0.74/20 40s} Bg4 {0.00/22 19s} 55. Bc2 {0.00/23 19s} Bh3
{0.00/23 22s} 56. Bd1 {0.00/25 15s} Bf5 {0.00/25 17s}
57. Bf3 {0.00/23 8s} 1/2-1/2
-- Dieter "lucky things happen" Bürßner
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