Author: Uri Blass
Date: 22:29:56 03/21/03
Go up one level in this thread
On March 21, 2003 at 18:26:26, Ferdinand S. Mosca wrote:
<snipped>
>>>Let me give you a simple idea in end game, in endings passers are very
>>>important, because of this try to study histories of a passer, where did the
>>>passers came from? how they are created? from it you will be able to create
>>>general ideas on pawn structure. Now why isolated pawn is weak, because it is
>>>not a good candidate to create a candidate passer, a passer is coming from a
>>>candidate passer.
>>>
>>>Regards,
>>>Dinan
>>
>>I disagree with the rule that passed pawns are strong.
>
>Generally it is strong in endings.
>
>>passers may be a weakness and there are examples when programs were
>>happy to create a passed pawn and the passed pawn got a lost position.
>>
>>Hiarcs did not lose the game but you can see that the passed pawn was
>>a weakness and not an advantage in the following game and smirin could win the
>>pawn by 38...hxg4 39.hxg4 f4 and 40...Ne8.
>
>That passer of HIARCS was created already in the 17th move (passer history
>should be studied). In fact the effect of that passer was so strong that the
>game revolves around that small piece.
>Also if it is a weakness, Did the GM annihilate that passer easily, even if that
>passer falls, still it was not a clear win.
>
>Regards,
>Dinan
Here is another example(in this example the loss of a passer led to a loss.
Resp lost a game against old movei because it lost a weak passer at d6.
Movei did not know nothing about passers.
I guess that Resp gave a bonus for the passer at d6 but I did not look at the
source code of Resp to know.
[Event "WBEC3_3rdDivision"]
[Site "DUAL-P3-933"]
[Date "2002.08.30"]
[Round "15.2"]
[White "Resp 0.19"]
[Black "Movei 0.0.72h"]
[Result "0-1"]
[Number "674"]
[TimeControl "40/2400"]
1. e4 c6 2. d4 d6 3. c4 Nf6 4. Nc3 Qa5 5. Bd3 e5 6. Ne2 Na6 7. O-O Nb4 8.
a3 Be7 9. dxe5 dxe5 10. Bg5 Nxd3 11. Qxd3 Be6 12. b3 Rd8 13. Qg3 h6 14. Be3
Ng4 15. Bc1 h5 16. h3 h4 17. Qf3 Nf6 18. Bg5 Kf8 19. a4 Qb4 20. Na2 Qa3 21.
Bc1 Qc5 22. Be3 Qa5 23. Rfd1 Rxd1+ 24. Rxd1 b5 25. Bd2 Qc7 26. cxb5 cxb5
27. axb5 Qd7 28. Nac1 Qxb5 29. Nc3 Qb6 30. Nd5 Bxd5 31. exd5 e4 32. Qc3 Rh5
33. Qc8+ Qd8 34. Qxd8+ Bxd8 35. Be3 Bb6 36. Bxb6 axb6 37. d6 Ke8 38. Na2
Rb5 39. b4 Rd5 40. Rc1 Rxd6 41. Rc4 b5 42. Rc5 Rd1+ 43. Kh2 Rd5 44. Rc2 Ke7
45. Rc7+ Ke6 46. Nc3 Rd2 47. Kg1 Rb2 48. Rc6+ Kd7 49. Rc5 Rxb4 50. Rxb5
Rxb5 51. Nxb5 Nd5 52. Kf1 Nf4 53. Nc3 f5 54. Nb5 Ke6 55. Na3 Kd5 56. Nc2 g6
57. Kg1 Kc4 58. Ne3+ Kd4 59. Nc2+ Kd3 60. Ne3 Ke2 61. Nc2 Ne6 62. Ne3 f4
63. Nc4 f3 64. Ne3 Nf4 65. Nc2 Nxg2 66. Nd4+ Ke1 67. Nc2+ Kd2 68. Nd4 Nf4
69. Kf1 Kc3 70. Nc6 Nxh3 71. Ne5 Nf4 72. Kg1 Kc2 73. Kf1 Ne2 74. Ke1 h3 75.
Ng4 Kc3 76. Kf1 Kb2 77. Nh2 Kb3 78. Ke1 Kc3 79. Kd1 Nd4 80. Ke1 Nc2+ 81.
Kf1
{White resigns} 0-1
Uri
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