Author: Richard Pijl
Date: 23:11:54 12/14/03
Go up one level in this thread
On December 15, 2003 at 01:12:03, martin fierz wrote:
>On December 14, 2003 at 17:30:49, Richard Pijl wrote:
>
>>On December 14, 2003 at 15:18:46, Richard Pijl wrote:
>>
>>>In a very recent game between Baron and Amateur (time control 45 10) on ICC, the
>>>following position occurred:
>>>
>>>[D]7k/2B2pp1/2n1b3/P2p2Pp/2p4n/4NP2/5K2/5B2 w - - 0 55
>>>
>>>White is two pawns down, both passers. As compensation, White has a pair of
>>>bishops. Understandably, Amateur showed a big plus score (+3.4), however The
>>>Baron thought is was almost drawn (-0.34). What do your engines think about
>>>this?
>>
>>Together with Dieter Bürßner we've tried to find a win for Black. We did not
>>succeed, but ofcourse we could not examine all lines. Can someone else find a
>>winning line?
>
>it would help if you posted your analysis :-)
>i don't see how white holds on after 1.a6 Nf5, eg. 2.Bb8 Nxe3 3.Kxe3 Bc8 4.a7
>Bb7. what did you find there?
The reason that we've been looking at this position is that I/we could not
believe that either.
If you replace 2Bb8 in your line by 2.Bb6, you end up with a game position.
We've played it out and tried some alternatives.
The problem was we didn't find something for black to break through. At least
none that could not be avoided by white in an earlier stage. We even ended up
with a winning line for white once!
I'll post some positions we've reached (semi-fortresses) later today. I have to
go to work now.
bye,
Richard.
>
>cheers
> martin
>
>>
>>>
>>>The game ended in a draw after many more moves.
>>
>>Full game score:
>>
>>[Event "ICS rated standard match"]
>>[Site "chessclub.com"]
>>[Date "2002.12.14"]
>>[Round "-"]
>>[White "thebaron"]
>>[Black "Amateur"]
>>[Result "1/2-1/2"]
>>[WhiteElo "2429"]
>>[BlackElo "2520"]
>>[TimeControl "2700+10"]
>>
>>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 7. Re1 Bc5 8.
>>c3 d6 9. a4 h6 10. d4 Bb6 11. axb5 axb5 12. Rxa8 Qxa8 13. dxe5 Nxe5 14. Bc2
>>Qa7 15. Nd4 O-O 16. Na3 b4 17. Nab5 Qa8 18. cxb4 Nxe4 19. Re3 Re8 20. Bb1
>>Bd5 21. b3 Qb7 22. f3 Nf6 23. Kh1 Bxd4 24. Nxd4 Qxb4 25. Bc2 Bb7 26. Re1
>>Ra8 27. Be3 Ra2 28. Bb1 Rb2 29. Re2 Rxe2 30. Qxe2 Nd5 31. Qd2 Qb6 32. Bg1
>>Nf6 33. Bc2 Qa6 34. Qe1 Qa8 35. h3 Qa3 36. Nf5 Qb2 37. Ne3 Nc6 38. Qe2 Qe5
>>39. Qc4 Qa5 40. Bf5 d5 41. Qa4 Qxa4 42. bxa4 Ne7 43. Bd3 c5 44. Bh2 c4 45.
>>Bf1 Nc6 46. Kg1 Bc8 47. g4 Kh8 48. Kf2 Bd7 49. h4 Be6 50. Bc7 h5 51. g5 Ne8
>>52. Bb6 Nd6 53. Bc7 Nf5 54. a5 Nxh4 { diagram position } 55. a6 Nf5 56. Bb6 Nxe3
>>57. Kxe3 Bc8
>>58. a7 Bb7 59. Kd2 Kh7 60. Bh3 Kg6 61. f4 Ne7 62. Bd7 Nf5 63. Kc3 h4 64.
>>Bf2 Ba8 65. Kb4 Ng3 66. Be3 Nf5 67. Bg1 Ng3 68. Bg4 f5 69. gxf6 Kxf6 70.
>>Bd4+ Kg6 71. Be5 Ne4 72. Bd7 Nf6 73. Bh3 Kf7 74. Kb5 Ke7 75. Bd4 Nh5 76.
>>Bc5+ Ke8 77. Kb6 Kd8 78. Bf2 Ng3 79. Bd4 Ne4 80. Bxg7 c3 81. f5 c2 82. Bh6
>>d4 83. f6 Nxf6 84. Bc1 Ne4 85. Bf1 Nc3 86. Kc5 Na2 87. Bg5+ Kc7 88. Kxd4
>>Bc6 89. Ke5 Kb7 90. Bh3 Kxa7 91. Be3+ Kb7 92. Kf4 Nc3 93. Kg5 Nd1 94. Bd2
>>Nf2 95. Kxh4 Nxh3 96. Kxh3 Kb6 97. Be3+ Kb5 98. Bd2 Kc4 99. Be3 Kd3 100.
>>Bf4 Ke2 101. Kg4 Bg2 102. Kf5 Kd3 103. Ke6 Kc3 104. Be5+ Kb3 105. Bf4 Ka2
>>106. Be3 Kb3 107. Ke5 Kb2 108. Bd4+ Kb1 109. Be3 Bf1 110. Kd5 Kb2 111. Bd4+
>>Kb1 112. Be3 Be2 113. Ke5 Kb2 114. Bd4+ Kb1 115. Be3 Kb2 116. Bd4+ Ka2 117.
>>Be3 Kb1 118. Kd6 Kb2 119. Ke6 Bc4+ 120. Ke5 Bd3 121. Bd4+ Kb1 122. Be3 Be2
>>123. Kd6 Kb2 124. Ke6 Bc4+ 125. Ke5 Ba6 126. Bd4+ Ka2 127. Be3 Kb1 128. Kd5
>>Bf1 129. Kd6 Kb2 130. Kc6 Be2 131. Kc7 Bf3 132. Bd4+ Kb1 133. Be3 Kb2 134.
>>Kb8 Kb1 135. Kc7 Bg4 136. Kd6 Kb2 137. Bd4+ Kb3 138. Be3 Kc4 139. Ke5 Kd3
>>140. Kf4 Bh5 141. Bc1 Ke2 142. Ke5 Kd1 143. Be3 Bf3 144. Ke6 Ke2 145. Bf4
>>Kd3 146. Kf5
>>{Game drawn by the 50 move rule} 1/2-1/2
>>
>>>Richard
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