Endspiel: Remis noch möglich für Weiß?

By Peter Martan Date 2010-12-09 14:58

[quote="Ernest Bonnem"]
Kann sich Weiß mit 54.Sb6+ oder 54.axb5 noch retten?
[/quote]

Ich glaube nicht, Ernest.

Dass es mit 54. Sb6+ nicht geht, hat ja schon die Originalpartie gezeigt, hier noch eine andere Variante dazu:

8/8/2b3p1/1p1k3p/P1N4P/2K3P1/8/8 w - - 0 1

1. Nb6+ Ke4 2. a5 Bb7 3. Nd7 Kf3 4. Ne5+ Kxg3 5. Nxg6 Be4 6. Ne5 Kxh4 7. a6 Kg3
8. Kd4 Ba8 9. Ng6 b4 10. a7 b3 11. Kc3 Kg4 12. Ne5+ Kf4 13. Nd3+ Kg3 14. Nc1
Kf3 15. Nd3 Bd5 16. Ne5+ Kf4 17. Nd3+ Ke3 18. Nb4 Ba8 19. Nd3 h4 20. Ne5 h3 21.
Ng4+ Kf4 22. Nh2 Bd5 23. Kd3 Ke5 24. Kc3 Kd6 25. Ng4 Kc7 26. Kb2 Kb7 27. a8=Q+
Kxa8 0-1

Und auch mit 1. axb5 sehe ich keinen Weg, die Niederlage für Weiß zu vermeiden, es scheint mir sogar noch schneller zu gehen:

8/8/2b3p1/1p1k3p/P1N4P/2K3P1/8/8 w - - 0 1

1. axb5 Bxb5 2. Nd2 Be2 3. Nb3 Ke4 4. Nd4 Ke3 5. Ne6 Bg4 6. Ng5 Bf5 7. Nf7 Kf3
8. Kd4 Kxg3 9. Ke5 Kxh4 10. Kf4 Be6 11. Ng5 Bd5 12. Nh7 Kh3 0-1

By Peter Martan Date 2010-12-09 16:51

P.S. Der output von Critter, nachdem man die eine, nach 1. Sb6+

8/8/1Nb3p1/1p1k3p/P6P/2K3P1/8/8 b - - 0 1

Analysis by Critter 0.90 32-bitT(Gaviota tbs option everywhere):

1...Ke4 2.a5 Lb7 3.Sd7 Kf3 4.a6 Lxa6 5.Se5+ Kxg3 6.Sxg6 Lc8 7.Kd4 Ld7 8.Ke3 Le8 9.Se5 Kxh4 10.Kf2 b4 11.Sf3+ Kg4 12.Se5+ Kf5 13.Sd3 b3 14.Kg3 Kg5 15.Kh2
-+ (-5.73 !) Tiefe: 28/75 00:18:13 4260mN, tb=272751

und nachdem man die andere, nach 1. axb5 langsam zurück gegangen ist, um den hash damit zu füllen:

8/8/2b3p1/1P1k3p/2N4P/2K3P1/8/8 b - - 0 1

Analysis by Critter 0.90 32-bitT:

1...Lxb5 2.Sa3 La6 3.Sc2 Ke4 4.Se1 Le2 5.Kd2 Lf1 6.Sc2 Kf3 7.Ke1 Lh3 8.g4 Lxg4 9.Kf1 Lf5 10.Sd4+ Kg3 11.Ke2 Kxh4 12.Kf3 Kg5 13.Sc6 Lc8 14.Kf2 Lf5 15.Kg3 h4+ 16.Kf3 Lc8 17.Kf2 Kf4
-+ (-5.28) Tiefe: 31/59 00:03:42 838mN, tb=108837

By Ernest Bonnem Date 2010-12-10 17:59

Danke Peter,

Am Zug 54 ist es schon zu spät für Weiß.

Ich glaube, daß Weiss am Zug 53 sich noch retten konnte:
53. Nc4? verliert
53. Kd3! hält Remis

Code:

[Event "Third World War"]
[Site "ChessGUI"]
[Date "2010.12.07"]
[Round "18.1"]
[White "Houdini 1.03a x64 POPCNT 4_CPU"]
[Black "Critter 0.90 64-bit SSE4"]
[Result "0-1"]
[ECO "C54"]
[PlyCount "202"]
[EventDate "2010.??.??"]
[TimeControl "600+10"]

{AMD Phenom(tm) II X4 940 Processor} 1. e4 {0.00/1 0} e5 {0.00/1 0} 2. Nf3 {0.
00/1 0} Nc6 {0.00/1 0} 3. Bc4 {0.00/1 0} Bc5 {0.00/1 0} 4. c3 {0.00/1 0} Nf6 {
0.00/1 0} 5. d4 {0.03/21 54} exd4 {0.00/21 60 (exd4)} 6. cxd4 {0.04/20 18 (e5)}
Bb4+ {-0.04/21 22 (Bb4)} 7. Nbd2 {0.06/22 35 (Nbd2)} Nxe4 {-0.03/21 27 (Nxe4)}
8. d5 {0.03/21 28 (O-O)} Ne7 {0.00/20 19 (Bxd2)} 9. O-O {0.03/21 31 (O-O)} Nxd2
{0.00/21 27 (Nf6)} 10. Bxd2 {0.10/20 16 (Bxd2)} Bxd2 {0.00/22 26 (Bxd2)} 11. d6
{0.04/21 60 (d6)} cxd6 {0.00/22 17 (cxd6)} 12. Qxd2 {0.04/19 0 (Qxd2)} O-O {0.
00/22 25 (O-O)} 13. Rfd1 {0.00/20 19 (Rfe1)} d5 {-0.06/21 18 (d5)} 14. Bxd5 {
-0.02/22 27 (Bxd5)} Nxd5 {-0.07/20 24 (d6)} 15. Qxd5 {0.06/20 6 (Qxd5)} a5 {-0.
08/21 15 (d6)} 16. Nd2 {0.07/20 15 (Rac1)} d6 {-0.04/21 16 (d6)} 17. Ne4 {0.06/
23 17 (Ne4)} Be6 {-0.05/23 17 (Be6)} 18. Qxd6 {0.04/23 21 (Qxd6)} Qxd6 {-0.03/
23 23 (Qxd6)} 19. Rxd6 {0.03/24 35 (Nxd6)} Rfd8 {-0.03/22 20 (Rfd8)} 20. a3 {
0.02/25 22 (a3)} Kf8 {-0.03/23 22 (Kf8)} 21. Rc1 {0.02/25 20 (f3)} Bf5 {-0.08/
23 14 (Bf5)} 22. Rcd1 {0.02/26 14 (Rcd1)} Rxd6 {-0.05/23 7 (Rxd6)} 23. Nxd6 {
0.02/24 0 (Nxd6)} Rd8 {-0.08/25 17 (Rd8)} 24. Rd4 {0.00/25 17 (Kf1)} Be6 {-0.
11/25 19 (Be6)} 25. Nb5 {0.00/25 16 (Nb5)} Rxd4 {-0.11/25 17 (Rxd4)} 26. Nxd4 {
0.00/23 0 (Nxd4)} Ke7 {-0.14/25 12 (Ke7)} 27. Kf1 {0.00/24 17 (Kf1)} Kd6 {-0.
14/25 21 (Kd6)} 28. Ke2 {0.00/24 14 (Ke2)} Bd5 {-0.14/24 21 (Bd5)} 29. f3 {0.
00/24 28 (g4)} Kc5 {-0.14/25 20 (g5)} 30. Kd3 {0.00/23 17 (Kd3)} a4 {-0.14/24
20 (g6)} 31. Nf5 {0.00/24 16 (g3)} g6 {-0.16/25 18 (g6)} 32. Ne3 {0.00/26 41 
(Nd4)} h5 {-0.20/24 12 (Be6)} 33. h4 {0.00/26 31 (Nd1)} Bc6 {-0.12/25 19 (f6)}
34. f4 {0.00/26 20 (Kc3)} Bd5 {-0.22/27 19 (b5)} 35. g3 {0.00/25 12 (g3)} Bc6 {
-0.22/27 12 (Bc6)} 36. f5 {-0.02/25 32 (f5)} Bf3 {-0.22/27 12 (Bf3)} 37. fxg6 {
-0.02/25 15 (fxg6)} fxg6 {-0.21/27 3 (fxg6)} 38. Kc3 {-0.05/25 18 (Nc2)} Be4 {
-0.21/27 14 (Bc6)} 39. Nc4 {-0.02/24 12 (Nc4)} Bf5 {-0.28/27 13 (Kd5)} 40. Ne3
{-0.06/25 15 (Ne3)} Bb1 {-0.42/27 16 (Be6)} 41. Nd1 {-0.09/24 24 (Kd2)} Be4 {
-0.39/29 12 (Be4)} 42. Ne3 {-0.09/25 18 (Ne3)} Bf5 {-0.31/29 13 (Bf5)} 43. Nf1
{-0.09/25 18 (Nf1)} Kd5 {-0.33/29 14 (Kd5)} 44. Nd2 {-0.09/23 0 (Nd2)} Be4 {-0.
31/28 12 (Be4)} 45. b3 {-0.09/24 14 (b3)} axb3 {-0.29/28 18 (axb3)} 46. Nxb3 {
-0.09/23 0 (Nxb3)} b6 {-0.36/28 17 (Ke5)} 47. Nd2 {-0.08/24 12 (Nd2)} Bf5 {-0.
33/29 11 (Bf5)} 48. a4 {-0.08/25 15 (a4)} Bd7 {-0.30/29 17 (Bd7)} 49. Nc4 {-0.
08/25 13 (Nc4)} Kc5 {-0.30/29 17 (Kc5)} 50. Nb2 {-0.08/25 17 (Nb2)} Be8 {-0.56/
27 14 (Be8)} 51. Kd3 {-0.08/23 0 (Kd3)} Bc6 {-0.59/27 11 (Bc6)} 52. Kc3 {-0.16/
24 21 (Kc3)} Kd5 {-0.72/26 16 (Kd5)} 53. Nc4 {-0.02/24 11 (Kd3)} b5 {-0.83/25
12 (b5)} 54. Nb6+ {-0.02/24 10 (Nb6)} Ke4 {-1.12/26 16 (Kc5)} 55. a5 {-0.18/23
30 (a5)} Bb7 {-1.42/26 16 (Bb7)} 56. Nd7 {-0.18/24 10 (Nd7)} Kf3 {-1.95/24 16 
(Kf3)} 57. Nf8 {-0.17/24 10 (Ne5)} Kxg3 {-2.54/26 15 (Kxg3)} 58. Nxg6 {-0.17/
23 0 (Nxg6)} Be4 {-2.56/27 15 (Be4)} 59. Ne5 {-0.18/26 13 (Ne5)} Kxh4 {-2.56/
28 13 (Kxh4)} 60. a6 {-0.35/26 39 (a6)} Kg3 {-2.56/28 15 (Ba8)} 61. Kd4 {-0.35/
24 4 (Kd4)} Ba8 {-2.56/29 15 (Ba8)} 62. Ng6 {-0.36/22 0 (Ng6)} b4 {-2.56/30 15
(b4)} 63. a7 {-0.97/23 12 (a7)} b3 {-2.56/30 11 (b3)} 64. Kc3 {-1.06/25 14 
(Kc3)} Kg4 {-2.56/28 2 (Kg4)} 65. Ne5+ {-1.06/24 0 (Ne5)} Kf4 {-2.56/30 15 
(Kf4)} 66. Nd3+ {-1.33/25 10 (Nc4)} Kg3 {-2.56/29 14 (Kg3)} 67. Nb2 {-1.48/26
18 (Ne5)} h4 {-2.56/28 14 (h4)} 68. Nc4 {-1.48/24 0 (Nc4)} Kf4 {-2.56/29 14 
(Kf4)} 69. Nd2 {-1.45/23 0 (Nd2)} h3 {-2.56/29 14 (h3)} 70. Nf1 {-1.51/21 0 
(Nf1)} Bd5 {-2.85/27 14 (Bd5)} 71. Kb2 {-1.52/27 13 (Kb2)} Kf3 {-3.78/25 11 
(Kf3)} 72. Ka1 {-2.05/26 41 (Kc3)} Kf2 {-5.76/24 14 (Kf2)} 73. Nh2 {-1.45/24 0
(Nh2)} Kg2 {-6.66/24 12 (Kg2)} 74. Ng4 {-1.51/22 0 (Ng4)} Kf3 {-6.78/25 13 
(Kf3)} 75. Nh2+ {-2.90/20 0 (Nh2)} Kf4 {-6.84/26 9 (Ke3)} 76. Kb1 {-4.02/24 40
(Kb2)} Ke4 {-6.84/26 13 (Ke5)} 77. Ka1 {-4.20/24 19 (Kb2)} Ke5 {-7.13/25 9 
(Kd4)} 78. Ng4+ {-4.62/24 27 (Kb1)} Kd6 {-7.59/24 15 (Ke6)} 79. Kb2 {-5.98/23
21 (Kb2)} Kc7 {-7.82/24 13 (Kc7)} 80. a8=N+ {-6.09/25 10 (Kc1)} Kb7 {-8.55/25
8 (Bxa8)} 81. Ne3 {-6.75/24 8 (Ne3)} h2 {-8.88/29 13 (h2)} 82. Nxd5 {-6.75/23
0 (Nxd5)} h1=Q {-81.61/24 12 (h1=Q)} 83. Nc3 {-11.53/27 21 (Nc3)} Kxa8 {310.73/
27 13 (Qh4)} 84. Kxb3 {-21.71/21 17 (Kxb3)} Qf1 {310.73/25 2 (Qf1)} 85. Kb4 {
-10.51/18 0 (Kb4)} Kb7 {310.73/27 2 (Qd3)} 86. Kc5 {-10.51/17 0 (Kc5)} Qc1 {
310.73/31 13 (Qf2)} 87. Kc4 {310.73/26 10 (Kc4)} Qc2 {310.73/33 12 (Qc2)} 88.
Kb4 {310.73/31 11 (Kd4)} Kc6 {310.73/36 13 (Qd3)} 89. Kc4 {310.73/33 12 (Kc4)}
Qd2 {310.73/35 13 (Qd2)} 90. Kb3 {310.73/34 13 (Kb3)} Qd4 {310.73/33 8 (Qd4)}
91. Na4 {310.73/34 9 (Na4)} Qd3+ {310.73/33 13 (Qd3)} 92. Kb4 {310.73/36 10 
(Kb4)} Qb5+ {310.73/35 13 (Qb5)} 93. Ka3 {310.73/40 9 (Ka3)} Qc4 {310.73/37 13
(Qc4)} 94. Nb2 {310.73/48 10 (Nb2)} Qc3+ {310.73/38 10 (Qc3)} 95. Ka2 {310.73/
67 8 (Ka2)} Kb5 {310.73/40 12 (Qc2)} 96. Nd1 {310.73/73 19 (Nd1)} Qc2+ {310.73/
41 10 (Qc2)} 97. Ka3 {310.73/80 9 (Ka3)} Qxd1 {310.73/43 9 (Qxd1)} 98. Ka2 {
310.73/78 9 (Ka2)} Kb4 {310.73/56 0 (Qd2)} 99. Kb2 {310.73/1 0 (Kb2)} Kc4 {310.
73/56 0 (Qd2)} 100. Ka2 {310.73/75 9 (Ka2)} Kc3 {310.73/56 0 (Kc3)} 101. Ka3 {
310.73/1 0 (Ka3)} Qa1# {310.73/56 0 (Qa1)} 0-1