Author: Enrique Irazoqui
Date: 15:42:00 12/29/00
Go up one level in this thread
On December 29, 2000 at 18:19:58, Alexander Kure wrote:
>Hi everybody,
>
>In the currently running Wels (Austria) tournament held by Mr. Wiesenecker in
>the game Nimzo 8 vs. SOS an interesting position showed up.
>
>[D]8/8/5kp1/7p/7K/4BP2/8/8 w - - 0 72
>
>In this position Nimzo 8 played 73.f4?? and despite a +10.00 evaluation at moves
>75 and 76 the score immediately dropped to 0 in the following moves!
>
>The following idea would have won easily:
>73.Bb6 Kf5 74.Bc7 Kf6 75.f4 {only now!} Kf5
>76.Be5 {controlling f6} Ke6
>{76...Ke4 77.Kg5 Kf3 78.Kxg6 h4 79.f5 game over}
>77.Kg5 Kf7 78.Bd4 {winning}
>
>Qustion: which engines avoid 73.f4?? and see the winning idea?
Tiger got it instantly and Deep Fritz took some more time. Both on a P750.
Enrique
00:00:00.5 4,28 13 168540 Bf4 Kf5 Bc7 Kf6 f4 Kf5 Be5 Ke6 Kg5 Kf7 Bd4 Ke8 Kxg6
00:00:01.7 4,28 14 296765 Bf4 Kf5 Bc7 Kf6 f4 Kf5 Be5 Ke6 Kg5 Kf7 Bd4 Ke8 Kxg6 h4
00:00:07.3 4,26 15 1985432 Bf4 Kf5 Bc7 Kf6 f4 Kf5 Be5 Ke6 Kg5 Kf7 Bc3 Ke8 Kxg6
h4 Kh5
00:00:16.4 4,78 16 4347509 Bf4 Kf5 Bc7 Kf6 f4 Kf5 Be5 Ke6 Kg5 h4 Kxh4 Kf5 Bc7
Kf6 Kg4 Ke7
00:00:19.1 4,78 17 5232976 Bf4 Kf5
00:00:28.6 4,88 18 7819357 Bf4 Kf5 Bc7 Kf6 f4 Kf5 Be5 Ke4 Kg5 h4 Kxh4 Kf5 Bc7
New position
8/8/5kp1/7p/7K/4BP2/8/8 w - - 0 1
Analysis by DEEP FRITZ :
1.f4
+- (2.22) Depth: 1/2 00:00:00
1.f4 Kf5
+- (2.06) Depth: 2/5 00:00:00
1.Bd4+!
+- (2.16) Depth: 2/6 00:00:00
1.Bd4+--
+- (1.84) Depth: 3/7 00:00:00
1.Bd4+--
+- (1.84) Depth: 3/7 00:00:00
1.f4!
+- (1.88) Depth: 3/7 00:00:00
1.f4! Kf5
+- (2.06) Depth: 3/7 00:00:00
1.f4 Kf5 2.Kh3 Ke4
+- (1.97) Depth: 4/7 00:00:00
1.Bf4!
+- (2.06) Depth: 4/7 00:00:00
1.Bc5!
+- (2.09) Depth: 4/7 00:00:00
1.Bc5 Kf5 2.Bd6 Ke6 3.Bf4
+- (2.06) Depth: 5/7 00:00:00
1.Bc5 Kf5 2.Bd6 Ke6 3.Bf4 Kd5
+- (1.97) Depth: 6/9 00:00:00 1kN
1.Bf4!
+- (2.00) Depth: 6/9 00:00:00 1kN
1.Bg5+!
+- (2.03) Depth: 6/9 00:00:00 1kN
1.f4!
+- (2.06) Depth: 6/9 00:00:00 1kN
1.f4 Kf5 2.Bd2 Kf6 3.Bc3+ Kf5 4.Be5 Ke4
+- (2.16) Depth: 7/12 00:00:00 3kN
1.f4 Kf5 2.Bd2 Kf6 3.Bc3+ Kf5 4.Be5
+- (2.09) Depth: 8/12 00:00:00 5kN
1.f4!
+- (2.41) Depth: 9/13 00:00:00 8kN
1.f4--
+- (2.09) Depth: 10/11 00:00:00 11kN, tb=6
1.f4--
+- (2.09) Depth: 10/12 00:00:00 12kN, tb=6
1.f4!
+- (2.41) Depth: 11/14 00:00:00 22kN, tb=23
1.f4--
+- (2.09) Depth: 12/13 00:00:00 35kN, tb=65
1.f4--
+- (2.09) Depth: 12/13 00:00:00 36kN, tb=65
1.Bg5+!
+- (2.13) Depth: 12/13 00:00:00 37kN, tb=65
1.Bg5+ Kf5 2.f4 Ke4 3.Kh3 Kf5 4.Bh6 Ke4 5.Kg3 Kd5 6.Bg5
+- (2.00) Depth: 13/19 00:00:00 74kN, tb=174
1.f4!
+- (2.03) Depth: 13/19 00:00:00 77kN, tb=181
1.f4! Kf5 2.Bd2 Kf6 3.Bc3+ Kf5
+- (2.44) Depth: 13/19 00:00:00 84kN, tb=193
1.f4!
+- (2.75) Depth: 14/18 00:00:00 109kN, tb=254
1.f4!
+- (3.06) Depth: 15/17 00:00:00 162kN, tb=385
1.f4--
+- (2.75) Depth: 16/16 00:00:00 223kN, tb=572
1.f4--
+- (2.75) Depth: 16/18 00:00:00 240kN, tb=584
1.Bb6!
+- (2.78) Depth: 16/18 00:00:00 294kN, tb=652
1.Bb6!
+- (3.09) Depth: 17/20 00:00:00 480kN, tb=926
1.Bb6--
+- (2.78) Depth: 18/18 00:00:01 706kN, tb=1453
1.Bb6--
+- (2.78) Depth: 18/22 00:00:01 770kN, tb=1485
1.Bb6--
+- (2.47) Depth: 19/21 00:00:02 1238kN, tb=2499
1.Bb6--
+- (2.47) Depth: 19/27 00:00:02 1329kN, tb=2559
1.f4!
+- (2.50) Depth: 19/27 00:00:02 1374kN, tb=2576
1.f4! Kf5 2.Bd2 Ke4 3.Kg5 Kf3 4.Kxg6 h4 5.f5 h3 6.f6 h2
+- (3.19) Depth: 19/30 00:00:02 1705kN, tb=3132
1.f4 Kf5 2.Bd2 Ke4 3.Kg5 Kf3 4.Kxg6 h4 5.f5 h3 6.f6 h2
+- (3.19) Depth: 20/31 00:00:03 2547kN, tb=5287
1.f4--
+- (2.88) Depth: 21/23 00:00:04 3297kN, tb=7059
1.f4--
+- (2.88) Depth: 21/27 00:00:05 3503kN, tb=7419
1.f4!
+- (3.19) Depth: 22/33 00:00:07 4936kN, tb=9976
1.f4--
+- (2.88) Depth: 23/29 00:00:09 6411kN, tb=14202
1.f4--
+- (2.88) Depth: 23/29 00:00:09 6529kN, tb=14384
1.f4!
+- (3.19) Depth: 24/41 00:00:16 11552kN, tb=22340
1.f4 Kf5 2.Bd2 Ke4 3.Kg5 Kf3 4.Kxg6 h4 5.f5 h3 6.f6 h2
+- (3.06) Depth: 25/41 00:00:35 24304kN, tb=37910
1.Bf4!
+- (3.09) Depth: 25/41 00:00:40 27946kN, tb=46473
1.Bf4! Kf5 2.Bc7 Kf6 3.f4 Kf5 4.Be5 Ke4 5.Kg5 h4 6.Kxh4 Kf5
+- (11.59) Depth: 25/41 00:00:56 40609kN, tb=68539
>Greetings
>Alex
>
>[Event "60"av/PIII-1GHz"]
>[Site "Wels"]
>[Date "2000.12.28"]
>[Round "1"]
>[White "Nimzo 8"]
>[Black "SOS"]
>[Result "1/2-1/2"]
>[ECO "C92"]
>[Annotator "0.74"]
>[PlyCount "176"]
>[EventDate "2000.12.28"]
>
>{128MB, Nimzo8.ctg. PIII-1GHz } 1. e4 {1} 1... e5 {2} 2. Nf3 {1} 2...
>Nc6 {1} 3. Bb5 {0} 3... a6 {1} 4. Ba4 {0} 4... Nf6 {2} 5. O-O {0} 5...
>Be7 {2} 6. Re1 { 0} 6... b5 {2} 7. Bb3 {0} 7... d6 {2} 8. c3 {0} 8...
>O-O {2} 9. h3 {0} 9... Na5 {2} 10. Bc2 {0} 10... Bb7 {2} 11. d4 {0}
>11... Nc4 {2} 12. b3 {0} 12... Nb6 {1} 13. Nbd2 {0} 13... Nfd7 {2} 14.
>Nf1 {0} 14... c5 {1} 15. Ne3 {0} 15... g6 {2} 16. a4 {0} 16... bxa4 {2}
>17. bxa4 {0} 17... a5 {2} 18. Rb1 {0} 18... Qc7 {2} 19. dxe5 {0} 19...
>Nxe5 {letzter Buchzug 420} 20. Nxe5 {0.74/11 69} 20... dxe5 {83} 21. c4
>{0.56/11 0} 21... Ba6 {97} 22. Bb3 {0.68/12 1} 22... Rfb8 {54} 23. Bb2
>{0.95/11 66} 23... f6 {45} 24. Bc3 {1.38/11 33} 24... Bb7 {57} 25. Nd5 {
>1.41/10 15} 25... Nxd5 {68} 26. exd5 {1.39/12 0} 26... Bd6 {122} 27. Qd2
>{ 1.30/13 0} 27... Bc8 {60} 28. Bc2 {1.34/12 0} 28... Rxb1 {73} 29. Rxb1
>{ 1.87/11 23} 29... Bd7 {131} 30. Qh6 {1.35/13 1} 30... Bf8 {40} 31. Qh4
>{ 1.45/10 22} 31... Bg7 {53} 32. Qe4 {1.50/11 44} 32... Qc8 {62} 33. Qe1
>{ 1.47/11 7} 33... Qa6 {85} 34. Bd3 {1.26/12 20} 34... Qc8 {136} 35. Ra1
>{ 1.38/10 21} 35... Qc7 {46} 36. Ra2 {1.25/12 122} 36... f5 {155} 37. f3
>{ 1.19/13 1} 37... Qd6 {94} 38. Kh1 {1.09/11 45} 38... Ra7 {29} 39. Bxa5
>{ 1.30/12 134} 39... e4 {16} 40. fxe4 {1.34/13 99} 40... fxe4 {16} 41.
>Bxe4 { 1.34/11 11} 41... Qa6 {64} 42. Bd2 {1.41/13 1} 42... Qxc4 {163}
>43. Rc2 { 1.49/13 0} 43... Qxa4 {55} 44. Rxc5 {1.46/11 1} 44... Qd4 {53}
>45. Rc1 { 1.37/11 1} 45... Ra4 {141} 46. Bf3 {1.33/12 1} 46... Ra3 {71}
>47. Rd1 { 1.39/10 5} 47... Rxf3 {50} 48. gxf3 {0.93/11 1} 48... Qxd5
>{158} 49. Qe3 { 0.79/12 0} 49... Qf5 {50} 50. Kg1 {0.69/12 145} 50...
>Qxh3 {77} 51. Be1 { 0.61/11 1} 51... h5 {78} 52. Qa7 {0.69/10 33} 52...
>Be6 {43} 53. Rd8+ { 0.78/11 0} 53... Kh7 {158} 54. Rd3 {0.75/13 1} 54...
>Bf5 {343} 55. Rc3 { 1.63/12 28} 55... Kh8 {32} 56. Qa8+ {2.85/12 87}
>56... Kh7 {1} 57. Rc7 { 2.80/12 107} 57... Bd3 {1} 58. Rxg7+ {2.95/11
>32} 58... Kxg7 {51} 59. Bc3+ { 2.80/12 1} 59... Kf7 {63} 60. Qd5+
>{2.83/11 0} 60... Ke7 {32} 61. Qxd3 { 2.94/11 74} 61... Qg3+ {46} 62.
>Kf1 {2.89/12 0} 62... Qh3+ {44} 63. Ke2 { 2.89/11 0} 63... Qg2+ {117}
>64. Ke3 {3.00/10 19} 64... Qg5+ {330} 65. Kf2 { 3.24/13 1} 65... Qh4+
>{79} 66. Kg2 {3.32/13 0} 66... Qg5+ {52} 67. Kh3 { 3.31/12 1} 67... Qf4
>{45} 68. Bd2 {3.35/11 0} 68... Qf6 {20} 69. Qd5 { 3.39/12 63} 69... Qe6+
>{19} 70. Qxe6+ {3.43/16 36} 70... Kxe6 {38} 71. Kh4 { 4.79/19 23} 71...
>Kf5 {94} 72. Be3 {4.73/18 15} 72... Kf6 {7} 73. f4 { 5.62/19 39} 73...
>Kf5 {21} 74. Bd2 {6.34/19 0} 74... Ke4 {29} 75. Kg5 { 10.33/19 21} 75...
>Kf3 {19} 76. Be1 {10.32/18 80} 76... Ke4 {15} 77. Bc3 { 0.50/18 99}
>77... h4 {20} 78. Be1 {0.00/19 35} 78... h3 {15} 79. Bg3 { 0.00/21 30}
>79... Kf3 {20} 80. Kh4 {0.00/22 43} 80... Kg2 {7} 81. Kg4 { 0.00/21 11}
>81... h2 {32} 82. Bxh2 {0.00/22 55} 82... Kxh2 {1} 83. Kf3 { 0.00/1 0}
>83... Kg1 {2} 84. Ke2 {0.00/1 0} 84... Kh2 {2} 85. Kd3 {0.00/1 0} 85...
>Kg1 {2} 86. Ke2 {0.00/1 0} 86... Kh2 {2} 87. Kd3 {0.00/1 0} 87... Kg1
>{2} 88. Ke2 {0.00/1 0} 88... Kh2 {4} 1/2-1/2
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