Author: John Merlino
Date: 10:28:37 05/18/04
Go up one level in this thread
On May 18, 2004 at 13:23:24, Eduard Nemeth wrote:
>On May 18, 2004 at 13:15:05, Eduard Nemeth wrote:
>
>>Pawn-endgame (Testposition) !
>>
>>In a Bullet-Game (Yesterday) I have not seen a winning Line in a Pawn endgame.
>>
>>:(
>>
>>[Event "Wertungspartie, 1m + 0s"]
>>[Site "Großer Spielsaal"]
>>[Date "2004.05.17"]
>>[Round "?"]
>>[White "Opponent"]
>>[Black "Eduard"]
>>[Result "1/2-1/2"]
>>[ECO "C21"]
>>[WhiteElo "2141"]
>>[BlackElo "2089"]
>>[SetUp "1"]
>>[FEN "8/3k3p/1p4p1/p2p1p2/PP3P1P/2PK2P1/8/8 w - - 0 40"]
>>[PlyCount "6"]
>>[EventDate "2004.05.17"]
>>[TimeControl "60"]
>>
>>40. Kd4 {0} Kd6 {1} (40... b5 $3 41. Kxd5 axb4 42. cxb4 bxa4 43. Kc4 Kc6 44.
>>b5+ Kb6 45. Kb4 a3 46. Kxa3 Kxb5 47. Kb3 Kc5 48. Kc3 Kd5 49. Kd3 h6 50. Ke2 Ke4
>>51. Kf2 Kd3 52. Kf3 Kd2 53. Kf2 h5 54. Kg1 Ke1 55. Kg2 Ke2 56. Kg1 Kf3 57. Kh2
>>Kf2 58. Kh3 Kg1 59. g4 hxg4+ 60. Kg3) 41. Kd3 {0} Kd7 {1} 42. Kd4 {1} Kd6 {
>>(Lag: Av=0.34s, max=0.6s) 0} 1/2-1/2
>>
>>Diagram:
>
>[D]8/3k3p/1p4p1/p2p1p2/PP1K1P1P/2P3P1/8/8 b - - 0 1
>
>b6-b5! wins.
>
>Line:
>
>40... b5!! 41. Kxd5 axb4 42. cxb4 bxa4 43. Kc4 Kc6 44.
>b5+ Kb6 45. Kb4 a3 46. Kxa3 Kxb5 47. Kb3 Kc5 48. Kc3 Kd5 49. Kd3 h6 50. Ke2 Ke4
>51. Kf2 Kd3 52. Kf3 Kd2 53. Kf2 h5 54. Kg1 Ke1 55. Kg2 Ke2 56. Kg1 Kf3 57. Kh2
>Kf2 58. Kh3 Kg1! -+
>
>
>Which Program can find the winning move 40…b5!! and with a score >+1 for black?
>
>Eduard.
CM_SKR on an AMD 2500+ sees 40...b5 in less than one second, and in 15 seconds
sees the line above all the way through to 49...h6. But the score is not close
to +1 for Black even after 4 minutes.
Time Depth Score Positions Moves
0:00 1/3 0.29 204 1...Ke6 2.b5 Kd6
0:00 1/4 0.10 514 1...Ke6 2.Ke3 Kd6 3.Kd3
0:00 1/5 0.25 1414 1...Ke6 2.Ke3 Kd7 3.b5 Kd6 4.Kd4
0:00 1/6 0.25 2781 1...Ke6 2.Ke3 Kd7 3.b5 Kd6 4.Kd4
0:00 1/6 0.10 3344 1...Kd6 2.Ke3 Ke6 3.bxa5 bxa5 4.Kd4
Kd6
0:00 1/7 0.21 6372 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4
0:00 1/8 0.25 8734 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6
0:00 2/9 0.00 21221 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6 6.Kc4
0:00 3/10 0.00 32011 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6 6.Kc4
0:00 4/11 0.00 47009 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6 6.Kc4
0:00 5/12 0.00 73493 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6 6.Kc4
0:00 6/13 0.00 118377 1...Kd6 2.b5 Ke6 3.c4 dxc4 4.Kxc4
Kd6 5.Kd4 Ke6 6.Kc4
0:00 6/13 -0.25 258480 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc7 5.b5 a3 6.Kb3 Kb6 7.Kxa3
Kxb5 8.Kb3 Kc5
0:01 7/14 -0.29 491770 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5
0:03 8/15 -0.22 1149823 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3
0:07 9/16 -0.22 2483499 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3
0:15 10/17 -0.16 4834014 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3 h6
0:38 11/18 -0.19 11494611 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3
h6 11.Ke3
1:31 12/19 -0.14 26263764 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3
h6 11.Ke3 h5
4:11 13/20 -0.18 69943023 1...b5 2.Kxd5 axb4 3.cxb4 bxa4
4.Kc4 Kc6 5.b5+ Kb6 6.Kb4 a3 7.Kxa3
Kxb5 8.Kb3 Kc5 9.Kc3 Kd5 10.Kd3
h6 11.Ke3 h5 12.Kd3
jm
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