Author: Robert Hyatt
Date: 09:15:52 07/09/04
Go up one level in this thread
On July 09, 2004 at 12:00:14, Arturo Ochoa wrote:
>Finally, I think the critical moment of the game was:
>
>-------------------------------------------------------------------
>49. Ng2? The problems of Diep in the endgame began. Now, it was correct 49. Nd3!
>=
Crafty expected Nd3 with white having a slight edge:
White(49): Nd3 [pondering]
time limit 1:50 (12:50)
depth time score variation (15)
...
17 2:03 0.22 49. ... Rh7 50. Qg2 Kg7 51. Nf4 Rdh6
52. Rxc6 Bxc6 53. Bxf5 Rh8 54. Bxg4
Qe7 55. Bf3 Qg5 56. e4 Rc8 57. Rxc6
Rxc6 58. Nxd5
As opposed to the score after Ng2:
16-> 1:13 -0.10 49. ... Rh7 50. Nh4 Rhh6 51. Bd3 f4
52. exf4 Nxd4 53. Rxc7 Bxa4 54. Kg2
Bd7 55. Qd1 Qf7 56. f3 Ne6 57. Nf5
Nxc7 58. Nxd6 Rxd6 59. Rxc7
time=1:50 cpu=398% mat=0 n=856543825 fh=90% nps=7.79M
ext-> chk=22430395 cap=2563254 pp=438495 1rep=1299734 mate=57077
predicted=24 nodes=856543825 evals=287913185 50move=1
endgame tablebase-> probes=0 hits=0
I think move 55. Bc2 was worse than Ng2. after 55. Rdc3 my score was -.13,
while after Bc3 it jumped to -.43...
Things slowly balanced out over the next few moves, getting back to about -.2
again... Crafty thought things stayed pretty equal until white played 69. Rh1
where the score jumped to -.5 and on 70. Rh2 the score jumped to -.7..
72. a5 seemed to be the final straw as the score went to -1.3 and started
getting better for black move by move. White just played badly in this area of
the game and let things get away.
>-------------------------------------------------------------------
>[d]4q1k1/2pb2r1/1pnr4/3p1p2/P2P2p1/2R1P1P1/5P2/1BR1N1KQ w - f6 0 49
>-------------------------------------------------------------------
>
>On July 09, 2004 at 11:23:36, Arturo Ochoa wrote:
>
>>On July 09, 2004 at 11:19:36, Arturo Ochoa wrote:
>>
>>>On July 09, 2004 at 10:27:41, Tord Romstad wrote:
>>>
>>>>I haven't studied the Diep-Crafty game very closely, but didn't Diep have a
>>>>clear advantage out of the opening?
>>>>
>>>>Tord
>>>
>>>
>>>
>>>[Event "WCCC 2004'"]
>>>[Site "Bar-Ilan Uni. (Israel)"]
>>>[Date "09.07.2004"]
>>>[Round "7"]
>>>[White "Diep"]
>>>[Black "Crafty 19.15"]
>>>[Result "0-1"]
>>>
>>>1. d4 d5 2. c4 e6 3. cxd5 exd5 4. Nc3 Nf6 5. Bg5 Be7 6. Qc2
>>>O-O 7. e3 Nc6 8. a3 h6 9. Bh4 Be6 10. Bd3 Nd7 11. Bxe7 Qxe7
>>>12. Nge2 Nb6 13. Nf4 Rac8 14. O-O Qg5 15. g3 Bg4 16. h3 Bd7
>>>17. h4 Qd8 18. b4 Bg4 19. Na4 Nxa4 20. Qxa4 g5 21. Ng2 a6
>>>22. Qc2 Qf6 23. Rfc1 Rfd8 24. b5 axb5 25. Qc5 Rd6 26. Qxb5
>>>b6 27. Ra2 Nd8 28. a4 Nc6 29. Rac2 Bd7 30. Qb2 Re8 31. Rc3
>>>Ree6 32. Bb5 Qf5 33. Bd3 Qf6 34. Qb1 Qe7 35. Qc2 Nb4
>>>36. Bh7+ Kh8 37. Qb2 Nc6 38. Bb1 Rf6 39. Qd2 Qe6 40. Qd3
>>>Rg6 41. Qd1 Rg7 42. Qf3 Kg8 43. Bd3 Nb4 44. Bb1 Nc6
>>>45. hxg5 hxg5 46. Ne1 g4 47. Qg2 Qe8 48. Qh1 f5 49. Ng2 Rh7
>>>50. Nh4 Rhh6 51. Rd3 Qa8 52. Ba2 Be6 53. Bb3 Qd8 54. Bd1
>>>Na5 55. Bc2 Rc6 56. Rdd1 Qd7 57. Kg2 Nc4 58. Bb3 Na5
>>>59. Rxc6 Qxc6 60. Rc1 Qd7 61. Bc2 Nc4 62. Qe1 Rf6 63. Qb4
>>>Qg7 64. Bd3 Qh7 65. Qb5 Qf7 66. Qc6 Kh7 67. Qa8 Qf8 68. Qb7
>>>Qd6 69. Rh1 Kg7 70. Rh2 Bd7 71. Bc2 Rf8 72. a5 Nxa5 73. Qa6
>>>Nc6 74. Bb1 Na5 75. Bc2 Nc4 76. Qa7 Qc6 77. Qa2 Nd6 78. Bd3
>>>Ra8 79. Qb1 Ne4 80. Rh1 Ra3 81. Rc1 Rc3 82. Rh1 Qa4 83. Qf1
>>>Qa2 84. Bb1 Qd2 85. Qe1 Kf6 86. Qxd2 Nxd2 87. Rd1 Nc4
>>>88. Kh2 Rb3 89. Ng2 Rb2 90. Kg1 Rd2 91. Rxd2 Nxd2 92. Ba2
>>>c6 93. Nf4 Be6 94. Nd3 Ke7 95. Nc1 c5 96. dxc5 bxc5 97. Bb3
>>>d4 98. Bd1 Bc4 99. exd4 cxd4 100. Be2 Ke6 101. Bxc4+ Nxc4
>>>102. Kf1 Kd5 103. Nd3 Ne5 104. Nf4+ Ke4 105. Ke2 d3+
>>>106. Kd2 Nc4+ 107. Kd1 Kd4 108. Ke1 Nd6 109. Ng2 Ne4
>>>110. Nf4 Kc3 111. Nd5+ Kb2 112. Nb4 d2+ 113. Ke2 Kb3
>>>114. Nd5 Nc3+ 115. Kxd2 Nxd5 0-1
>>>
>>>--------------------
>>>Move 15. g3?: Diep is afraid of a king attack. However, if Diep had already
>>>played Nf4, the idea was to eliminate the bishop in e6. Removing this bishop,
>>>Diep could have begun a minority attack in the queen side or the modern way with
>>>f3. Thefore, the correct move was 15. Nxe6! After this move, it would have been
>>>more difficult for the black side to find anything else in the king side.
>>>
>>>[d]2r2rk1/ppp2pp1/1nn1b2p/3p2q1/3P1N2/P1NBP3/1PQ2PPP/R4RK1 w - - 0 15
>>>
>>>--------------------
>>>Move 19. Na4?!: This is a common mistake in computer chess. This knight cannot
>>>exchanged. The minority attack was the correct way to go, despite the weaknesses
>>>in the king side (now, the black bishop is the clue). 19. Rfc1 wouhe have
>>>directed the plan in the queen side. However, with the black bishop on the
>>>board, I dont see a clear consecution of the minority plan.
>>
>>[d]2rq1rk1/ppp2pp1/1nn4p/3p4/1P1P1NbP/P1NBP1P1/2Q2P2/R4RK1 w - - 0 19
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