Author: John Merlino
Date: 09:44:55 10/20/05
Go up one level in this thread
On October 20, 2005 at 11:46:34, Robert Hyatt wrote: >Here is the PGN for a blitz game Crafty played on ICC (ignore the pgn headers, I >fabricated them when annotating the game, I believe the game was a 5 0 blitz). > >[Event "?"] >[Site "?"] >[Date "2005.10.18"] >[Round "?"] >[White "Crafty 20.1"] >[WhiteElo ""] >[Black "unknown"] >[BlackElo ""] >[Result "*"] > >1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 c5 5. d5 h6 6. Bh4 Bxc3+ >7. bxc3 d6 8. e3 e5 9. Bd3 e4 10. Bc2 Qe7 11. Bxf6 Qxf6 12. Ne2 >Qe5 13. Qb1 Nd7 14. Bxe4 O-O 15. Bd3 Nf6 16. Qc2 a6 17. a4 Bg4 >18. Rb1 b5 19. axb5 axb5 20. Rxb5 Bxe2 21. Kxe2 Rfe8 22. h3 >Nh5 23. Kd2 Qg5 24. Rg1 Qf6 25. Rf1 Qe5 26. Rb7 Nf6 27. Rbb1 >Qh2 28. Rg1 Nd7 29. Rbf1 Ne5 30. Ke2 Nxd3 31. Kxd3 Qe5 32. Kd2 >Qf6 33. f4 Ra3 34. Re1 Qd8 35. Re2 Qa5 36. Rb1 Ra4 37. Kd3 f6 >38. Rb5 Qa6 39. Qb3 Ra3 40. Qb2 Ra4 41. e4 Kh7 42. Qc2 Kg8 43. Qb3 >Ra3 44. Qb2 Ra4 45. Qc2 Kh8 46. Qb3 Ra3 47. Qb2 Ra4 48. Qb3 >Ra3 49. Qb2 Ra4 50. h4 h5 51. f5 Kh7 52. Qb1 Ra1 53. Rb6 Qa5 >54. Qb3 Ra3 55. Rb5 Qa6 56. Qc2 Ra1 57. Rb1 Kh8 58. Ree1 Ra2 >59. Qd1 Kg8 60. Qxh5 Ra8 61. Qg4 Ra4 62. e5 dxe5 63. Qe4 Ra3 >64. Rb5 Qa4 65. d6 Ra2 66. Rc1 Rf2 67. Rxc5 Qa2 68. Qe1 Rd8 >69. Ke3 Rxg2 70. Rd1 Rh2 71. Rd2 Rh3+ 72. Ke4 Qa8+ 73. Rdd5 >Rxd6 74. Qb1 Rxd5 75. Rxd5 Qc8 76. Qb5 Rxh4+ 77. Ke3 Qxf5 78. Rd8+ >Kh7 79. Qb3 Qf4+ 80. Kd3 Rh2 81. Rh8+ Kxh8 82. Qd1 e4+ 83. Kd4 >Qd6+ 84. Ke3 Qxd1 85. Kxe4 Rf2 86. c5 * > > >The interesting stuff starts around move 65. White played d6 with an eval of >+3.20. Let your program search there to see what it likes. The longer you >search, the more the score should drop. > >If it doesn't follow the game another move and try again. Crafty's scores >looked like this: > >move 66: +3.15, 67: +2.41, 68: +1.59, 69: +.62, 70: 0.00, 71: -.39, 72: 0.00, >73: 0.00, 74: -1.33, 75: -2.76, 76: -2.75, 77: -12.0, 78: -13.66, etc. > >I first thought I had some sort of bug, but after playing back through the >position, this is less a bug and more just missing deep tactics. Would be >interesting to see what kinds of scores at different depths other programs see >starting at move 66... At move 65, CM9_R1 on a P4-2.4 likes d6 only between 1 and 11 seconds -- after that it switches to Rc1, and eventually Reb1 with a good score: Time Depth Score Positions Moves 0:00 1/4 2.10 12311 65.Rc1 Ra1 66.Rxa1 Qxa1 67.Qe2 Ra2 0:00 1/5 2.00 19324 65.Rc1 Ra2 66.d6 Qa3 67.Qd5+ Kh7 68.Rf1 0:00 1/6 1.98 46313 65.Rc1 Ra2 66.d6 Qa3 67.Qd5+ Kh7 68.Rc2 0:00 1/7 1.86 111561 65.Rc1 Ra2 66.d6 Kh7 67.Rxc5 Qa3 68.Qe3 Rxg2 0:01 1/7 1.97 230224 65.d6 Ra2 66.Rc1 Rd8 67.Qd5+ Kh7 68.g4 Qa3 69.Rc2 e4+ 70.Kd2 0:02 1/8 1.90 511510 65.d6 Ra2 66.Rc1 Rd8 67.Qd5+ Kh7 68.Rxc5 Qd7 69.g4 Qxd6 70.Qxd6 Rxd6+ 71.Ke3 0:07 1/9 1.76 1510755 65.d6 Ra2 66.Rc1 Rf2 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Qa3 70.Rc2 Rxh4 0:11 1/9 1.93 2350849 65.Rc1 Ra1 66.Rxa1 Qxa1 67.Qe2 Re8 68.h5 e4+ 69.Kd2 e3+ 70.Kd3 Qa7 0:17 1/10 1.83 3830527 65.Rc1 Ra1 66.Rxa1 Qxa1 67.Qe2 Re8 68.Kc2 Ra8 69.Rb2 Re8 70.Rb7 e4 0:36 1/10 2.18 7797126 65.Reb1 Ra2 66.R1b3 Re8 67.Rb7 Re7 68.Rb8+ Re8 69.Rxe8+ Qxe8 70.d6 Kf8 71.Rb7 Qa4 1:06 1/11 2.36 14374356 65.Reb1 Ra1 66.Qg4 Rxb1 67.Rxb1 Qa7 68.Qe2 Re8 69.Ke4 Ra8 70.g4 Qc7 71.Kd3 1:50 1/12 2.26 24381826 65.Reb1 Ra1 66.Qg4 Rxb1 67.Rxb1 Qa7 68.Qe2 Re8 69.Qh5 Rd8 70.Qf3 Rd7 71.Rb5 Here's what I get after forcing each pair of moves (analysis provided for moves on which The King disagrees with the move played): 65.d6 Ra2 (+1.48 at depth 11, +0.88 at 12 -- agrees with Rc1) 66.Rc1 Rf2 (+1.5 at depth 11, +1.48 at 12 -- wants Ke3) Time Depth Score Positions Moves 0:00 1/3 2.26 2703 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Rxh4 0:00 1/4 2.26 6605 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Rxh4 0:00 1/5 2.61 17824 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Rxh4 70.Rc7 0:00 1/6 1.76 79263 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Qa3 70.Rc2 Rxh4 0:00 1/7 1.93 155162 67.Ke3 Qa2 68.Qxa8+ Qxa8 69.Kxf2 Qe4 70.Ra1 Qxf5+ 71.Kg1 Qd3 0:01 1/8 1.81 346542 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Qa3 70.Rd1 Rxf5 71.Ke2 Rb8 0:04 1/9 1.74 1017780 67.Ke3 Rf4 68.Qd5+ Kh7 69.Rxc5 Qa3 70.Rd1 Qxc3+ 71.Qd3 Qb2 72.Rd2 Qa1 0:15 1/10 1.58 3036554 67.Ke3 Rf4 68.Qd5+ Kh7 69.g3 Rxc4 70.Rxc5 Rxc5 71.Qxc5 Qg4 72.Qd5 Rd8 73.Kf2 Qxf5+ 74.Kg1 0:30 1/11 1.50 6378080 67.Ke3 Rf4 68.Qd5+ Kh7 69.g3 Rxc4 70.Rxc5 Rxc5 71.Qxc5 Qg4 72.Qc6 Rd8 73.Rg1 Qxf5 74.Rd1 1:14 1/12 1.48 15876152 67.Ke3 Rf4 68.Qd5+ Kh7 69.g3 Rxc4 70.Rxc5 Rxc5 71.Qxc5 Rd8 72.Qb6 Qd7 73.c4 Qxd6 74.Qxd6 Rxd6 75.c5 Rc6 67.Rxc5 Qa2 (-0.3 at depth 11, agrees with Qe1) 68.Qe1 Rd8 (-0.81 at depth 11, agrees with Ke3) ...and it's pretty much all downhill from there. Let me know if you need more. jm
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