Author: Drexel,Michael
Date: 10:33:21 01/15/04
Go up one level in this thread
On January 15, 2004 at 12:24:35, Günther Simon wrote:
>On January 15, 2004 at 12:18:28, Drexel,Michael wrote:
>
>>On January 15, 2004 at 09:05:19, Günther Simon wrote:
>>
>>>[D]8/p7/1p5p/5k2/8/b1p3P1/3pK1PP/3B4 w - - 0 47
>>>
>>>This game was played in Class B of my RWBC tournament circuit.
>>>(PIV 2.67Ghz, around 128MB hash each program, 4men tablebases
>>>+ two sets of 5men, 15min/40moves, ponder off)
>>>
>>>ExChess had a completely won game, but decided one move before
>>>to exchange R vs. N+P on f5. It appears to me that this position
>>>is by all means a draw, but no program will find it.
>>
>>This can't be true. Black has 4 connected passers.
>>I think black wins with 47...Ke5.
>
>You should elaborate a bit more here of course, as a good player I think you
>know, how one bishop can stop up to seven pawns building 'stairs'.
>Same motive applies here later and dont forget Black King must stop
>Whites later built passer too! ( the passer is inevitable...)
>Please have a deeper look at it again after 48.Kd3 etc...
>
>Günther
That's an easy win. White King and bishop can't stop the black pawns and prevent
blacks King from advancing simultaneously.
The white passer is not a problem. It will be stopped with Bf8.
Basically you just move up those pawns to the Qeening square.
b5,a5,a4 etc.
Michael
>
>
>
>>Michael
>>
>>>
>>>If someone here still believes that Black can win, I would welcome
>>>some convincing lines.
>>
>>>
>>>Günther
>>>
>>>[Event "RWBC Class B 3rd edition"]
>>>[Site "ESPRESSO"]
>>>[Date "2004.01.13"]
>>>[Round "11"]
>>>[White "Ant_606"]
>>>[Black "EXchess403a"]
>>>[Result "1/2-1/2"]
>>>[ECO "E12"]
>>>[PlyCount "180"]
>>>[EventDate "2003.12.??"]
>>>
>>>1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb7 5. a3 g6 6. Bg5 Bg7 7. e3 h6 8. Bh4 d6
>>>9. Bd3 g5 10. Bg3 Nh5 11. O-O O-O 12. Be4 c6 13. Bc2 Nxg3 14. fxg3 f5 15. Qd3
>>>g4 16. Nh4 Nd7 17. Kh1 Ba6 18. Ng6 Rf6 19. Nh4 d5 20. b3 Rf7 21. Ng6 Qg5 22.
>>>Nf4 Re8 23. Na2 c5 24. Rae1 dxc4 25. bxc4 e5 26. Nd5 exd4 27. Rxf5 Rxf5 28.
>>>Qxf5 Qxf5 29. Bxf5 Nf6 30. Nxf6+ Bxf6 31. e4 Bxc4 32. Nc1 d3 33. Rd1 Rd8 34.
>>>Bxg4 d2 35. Kg1 Bd4+ 36. Kh1 Bb2 37. Ne2 Bb3 38. Nf4 c4 39. Nd5 Bxd1 40. Bxd1
>>>Rf8 41. Ne7+ Kh7 42. Nf5 Bxa3 43. Kg1 c3 44. Kf1 Kg6 45. Ke2 Rxf5 46. exf5+
>>>Kxf5 47. Bc2+ Ke6 48. Kd3 Bb2 49. Kc4 Ke5 50. h3 a6 51. h4 Ba1 52. h5 Bb2 53.
>>>Kb3 Ke6 54. Kc4 Ba1 55. g4 Kf6 56. g3 Bb2 57. Kb3 Kf7 58. Kc4 Ba1 59. Kd5 Kg7
>>>60. Kc6 b5 61. g5 hxg5 62. g4 b4 63. Kc5 a5 64. Kb5 Bb2 65. Kxa5 b3 66. Bxb3
>>>Ba3 67. Kb5 Bd6 68. Bc2 Kh6 69. Kc4 Be5 70. Ba4 Bf6 71. Bb3 Kh7 72. Bc2+ Kg7
>>>73. Bd1 Kf7 74. Kd5 Bg7 75. Ke4 Ke6 76. Bb3+ Kf6 77. Kd4 Ke7+ 78. Ke4 Bh8 79.
>>>Kf5 Bf6 80. h6 Bd4 81. Kxg5 Be3+ 82. Kg6 Bf4 83. g5 Kf8 84. Kh5 Bxg5 85. Kxg5
>>>d1=Q 86. Bxd1 c2 87. Bxc2 Kg8 88. h7+ Kg7 89. Kg4 Kh8 90. Bd3 Kg7 {
>>>Game adjourned, weaker side uses TBS} 1/2-1/2
>>>
>>>http://home.t-online.de/home/g.simon.rgbg/
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