Author: Uri Blass
Date: 10:39:46 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... The free version of Fruit(the version with source code) never choose d6 at depth>4 so maybe you should learn from fruit's king safety evaluation. Crafty 20.1 - unknown, 2005 [D]r5k1/6p1/5p2/1RpPpP2/q1P1Q2P/r1PK4/6P1/4R3 w - - 0 1 Analysis by Fruit 2.1: 65.Rxc5 +- (1.84) Depth: 1/1 00:00:00 65.Rxc5 Ra2 +- (1.45) Depth: 2/6 00:00:00 65.d6 Ra2 66.Qd5+ Kf8 67.Rxc5 +- (1.65) Depth: 2/7 00:00:00 65.d6 Ra2 66.Qd5+ Kf8 67.Rxc5 +- (1.65) Depth: 3/8 00:00:00 65.d6 Ra2 66.Ke3 Qa3 67.Qd5+ Kf8 ± (1.36) Depth: 4/15 00:00:00 65.Reb1 Ra2 66.Rb8+ Rxb8 67.Rxb8+ Kh7 +- (1.44) Depth: 4/17 00:00:00 65.Reb1 Ra2 66.Ke3 Qa3 67.Rb8+ Rxb8 68.Rxb8+ Kf7 +- (1.53) Depth: 5/23 00:00:00 65.Reb1 Ra2 66.Ke3 Qa7 67.Rb7 Qa6 +- (1.42) Depth: 6/23 00:00:00 46kN 65.Reb1 Ra2 66.Ke3 Qa7 67.Rb7 Qa5 68.Rb8+ Rxb8 69.Rxb8+ Kf7 +- (1.44) Depth: 7/23 00:00:00 143kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa7 68.Rb7 Qa6 +- (1.42) Depth: 8/25 00:00:00 340kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa7 68.Rb7 Qa5 69.Rb8+ Rxb8 70.Rxb8+ Kf7 +- (1.44) Depth: 9/29 00:00:01 751kN 65.Reb1 Ra2 66.Ke3 Rc2 67.Qg4 Rxc3+ 68.Kf2 Rc2+ 69.Kg1 Qxc4 70.Rb8+ Rxb8 71.Rxb8+ Kf7 72.Qg6+ Ke7 73.Qxg7+ Kd6 74.Qxf6+ Kxd5 +- (1.45) Depth: 10/29 00:00:02 1816kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa5 68.d6 Kh7 69.g4 Rd8 70.Qd5 +- (1.69) Depth: 11/40 00:00:08 7585kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa5 68.d6 Rd8 69.Qd5+ Kf8 70.d7 Ke7 71.Qe6+ Kf8 72.Qd6+ Kf7 73.g4 +- (1.69) Depth: 12/40 00:00:12 11252kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa5 68.d6 Kh7 69.d7 Qc7 70.Rb7 Qa5 71.R1b3 Qd8 +- (1.75) Depth: 13/48 00:00:37 34807kN 65.Reb1 Ra2 66.Ke3 Qa3 67.R5b3 Qa5 68.d6 Kh7 69.Qd5 Rd8 70.g4 Rh2 71.h5 Qa7 +- (1.79) Depth: 14/48 00:01:02 57799kN (, 20.10.2005) After d6 fruit2.1's analysis: Crafty 20.1 - unknown, 2005 [D]r5k1/6p1/3P1p2/1Rp1pP2/q1P1Q2P/r1PK4/6P1/4R3 b - - 0 1 Analysis by Fruit 2.1: 65...Ra1 66.Qd5+ Kf8 67.Rxa1 Qxa1 68.Qxc5 +- (3.01) Depth: 1/6 00:00:00 65...Ra2 66.Qd5+ Kf8 67.Rxc5 +- (1.65) Depth: 1/6 00:00:00 65...Ra2 66.Qd5+ Kf8 67.Rxc5 +- (1.65) Depth: 2/9 00:00:00 65...Ra2 66.Ke3 Qa3 67.Qd5+ Kf8 ± (1.36) Depth: 3/14 00:00:00 65...Ra2 66.Ke3 Qa3 67.Qd5+ Kf8 ± (1.36) Depth: 4/17 00:00:00 65...Ra2 66.Ke3 Qa3 67.Qd3 Kf8 ± (1.28) Depth: 5/17 00:00:00 65...Ra2 66.Ke3 Qa3 67.Qd3 Rd8 68.g4 +- (1.56) Depth: 6/18 00:00:00 32kN 65...Ra2 66.Ke3 Qa3 67.Qd3 Rd8 68.Kf3 Qa6 69.Qd5+ Kf8 +- (1.54) Depth: 7/21 00:00:00 114kN 65...Kh7 66.g4 Rd8 67.Qd5 e4+ 68.Kd2 Ra2+ 69.Ke3 Qc2 +- (1.44) Depth: 7/24 00:00:00 215kN 65...Kh7 66.Reb1 Rd8 67.Qd5 e4+ 68.Kd2 Ra2+ 69.Ke3 Qa6 70.d7 Qa7 +- (1.47) Depth: 8/26 00:00:00 534kN 65...Ra2 66.Rc1 Kh7 67.g4 Rh2 68.h5 Rd8 69.Qd5 ± (1.33) Depth: 8/26 00:00:01 853kN 65...Ra2 66.Rc1 Rd8 67.Qd5+ Kh8 68.Rxc5 Qd7 69.g4 Qxd6 70.Qxd6 Rxd6+ 71.Rd5 ± (1.37) Depth: 9/26 00:00:01 1306kN 65...Ra2 66.Rc1 Rd8 67.Qd5+ Kh8 68.Rxc5 Qd7 69.g4 Qxd6 70.Qxd6 Rxd6+ 71.Rd5 ± (1.37) Depth: 10/30 00:00:03 2357kN 65...Ra2 66.Rc1 Rd8 67.Qd5+ Kh7 68.Rxc5 Qd7 69.g4 Qxd6 70.Qxd6 Rxd6+ 71.Rd5 Rb6 ± (1.19) Depth: 11/32 00:00:05 4834kN 65...Ra2 66.Ke3 Qa3 67.Qd5+ Kh7 68.Kd3 Qa4 69.Rc1 Rf2 70.Qxc5 Qa2 71.Qe3 Rxg2 ± (1.05) Depth: 12/36 00:00:12 11557kN 65...Rd8 66.Qd5+ Kh7 67.Rc1 Ra2 68.Rxc5 e4+ 69.Qxe4 Qa3 70.Qe3 Rxg2 71.Rg1 Rxd6+ 72.Rd5 Rh2 ± (0.97) Depth: 12/37 00:00:18 16700kN 65...Rd8 66.Qd5+ Kh7 67.Reb1 Ra2 68.R5b2 Rxb2 69.Rxb2 Qd1+ 70.Rd2 Qf1+ 71.Ke3 Qf4+ 72.Ke2 Qxh4 73.Kf1 Qf4+ 74.Kg1 Qxf5 75.Qxc5 ± (0.95) Depth: 13/50 00:00:28 26301kN 65...Rd8 66.Qd5+ Kh7 67.Reb1 Ra2 68.R5b2 Rxb2 69.Rxb2 Qd1+ 70.Rd2 Qf1+ 71.Ke3 Qf4+ 72.Ke2 Qxh4 73.Kf1 Qf4+ 74.Kg1 Qxf5 75.Qxc5 ± (0.95) Depth: 14/50 00:00:43 41685kN 65...Rd8 66.Qd5+ Kh7 67.Rb2 Rxc3+ 68.Kxc3 Qa5+ 69.Kc2 Qxe1 70.Rb3 Rd7 71.Ra3 Qf2+ 72.Kc1 Qxf5 73.g3 Qf1+ 74.Kc2 Qe2+ 75.Kc3 Qg4 76.Kb2 Qe2+ 77.Kb3 ² (0.46) Depth: 15/58 00:02:31 145173kN (, 20.10.2005)
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