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Subject: Re: A game Crafty 19.06 v Shredder 8

Author: Robert Hyatt

Date: 19:38:14 02/04/04

Go up one level in this thread


On February 03, 2004 at 23:34:39, Chessfun wrote:

>
>Interesting game only the 5th loss by Shredder in 64 games.
>
>Shredder thinks at move 23...g3 it's up 1.72.
>Then a nice difference in evals between the programs at move 41. Crafty thinking
>white is winning +0.45 while Shredder thinking black is winning 1.31

I looked thru the game.  At move 41, I can't imagine why black would think it is
winning by 1.31...  If I were guessing, I would bet it is blacks "love" for the
queen.  IE I have seen Diep with huge scores for itself as in the past it has
thought that a queen vs a pair of rooks and a couple of pawns is better for the
queen.  It is certainly unbalanced with respect to material, question is whether
the two bishops and rook can overpower the queen and rook with the passed pawn.


>
>Crafty then sees draw scores 43-46, while Shredder's 45 shows it thinks it's
>winning by 1.69 with move 45....Qxa4

This is a classic mistake.  Crafty thinks it is better, but has to take the draw
to avoid heading to a worse position that favors black.  Black thinks it is
better and avoids the draw and lets white out...


>
>I have a few blitz games as others have posted where Shredder has drawn from a
>large positive eval. In a lot of cases though this eval does turn out to be
>right.
>
>Shredder score in this match is +2 -1 =2
>
>AMD XP 2600+ 128 mb each
>Shredder 8......Shredder8.ctg
>Crafty 19.06....general.ctg
>
>[Event "Rating S8"]
>[Site "Barrie"]
>[Date "2004.02.03"]
>[Round "5.8"]
>[White "Crafty 19.06"]
>[Black "Shredder 8"]
>[Result "1-0"]
>[ECO "B57"]
>[PlyCount "181"]
>[EventDate "2004.01.26"]
>[Source "Bird"]
>[TimeControl "40/2400:40/2400:2400"]
>
>1. e4 {0} c5 {0} 2. Nf3 {0} Nc6 {0} 3. d4 {0} cxd4 {0} 4. Nxd4 {0} Nf6 {0} 5.
>Nc3 {0} d6 {0} 6. Bc4 {0} e5 {0} 7. Nf5 {0} Be6 {0} 8. Ne3 {0.30/12 77} Be7 {
>0.25/16 80} 9. O-O {0.23/12 73} O-O {0.28/16 77} 10. Ned5 {0.23/12 73} Rc8 {
>(Nb4) 0.37/15 83} 11. Bd3 {0.31/11 73} Qd7 {(h6) 0.34/14 68} 12. f4 {
>(Be3) 0.34/11 74} Bxd5 {(Bg4) 0.45/14 115} 13. exd5 {(Nxd5) 0.60/12 73} Nd4 {
>0.39/14 32} 14. Re1 {(Bd2) 0.50/11 73} Bd8 {(Rfe8) 0.00/15 104} 15. fxe5 {
>(Rf1) 0.09/11 95} dxe5 {0.00/13 8} 16. Rxe5 {(Rf1) 0.20/12 72} Bb6 {
>-1.04/16 143} 17. Kf1 {0.17/12 72} Ng4 {-1.03/16 68} 18. Rh5 {0.52/12 72} g6 {
>(h6) -1.01/16 85} 19. Rh4 {0.17/11 72} h5 {-1.43/15 59} 20. Bf4 {
>(a4) -0.34/11 72} Nf5 {-1.51/16 94} 21. Rxg4 {-1.03/13 72} hxg4 {-1.74/16 67}
>22. Qd2 {(d6) -1.07/12 72} Ba5 {-1.80/15 63} 23. Be2 {(Be4) -1.11/13 72} g3 {
>-1.72/15 98} 24. hxg3 {-1.11/12 72} Rfe8 {(Bxc3) -1.46/14 56} 25. Qd3 {
>(d6) -0.85/12 72} Nd6 {-1.44/14 64} 26. Bf3 {-0.82/12 72} a6 {
>(Bxc3) -1.23/14 122} 27. Rd1 {(Bxd6) -0.84/12 141} Bb4 {(Bxc3) -1.19/15 87} 28.
>a4 {(Bxd6) -0.76/11 68} Ba5 {(Qe7) -1.04/14 68} 29. Ne4 {(Bxd6) 0.00/14 66}
>Nxe4 {0.08/14 68} 30. Bxe4 {0.00/12 22} Kg7 {0.01/14 50} 31. Qd4+ {0.47/12 70}
>f6 {-0.48/15 29} 32. Bd3 {0.00/12 70} Rh8 {(Rcd8) -0.71/15 78} 33. Kg1 {
>(Bg5) 0.17/12 70} Rce8 {(Rh5) -0.48/15 90} 34. c3 {(c4) -0.01/12 70} Rh5 {
>-0.45/15 64} 35. Bc2 {-0.41/12 71} Re2 {-0.99/14 42} 36. Bxg6 {-0.62/12 113}
>Rxb2 {(Qxd5) -1.05/15 53} 37. Bxh5 {0.25/13 61} Bb6 {-0.76/19 77} 38. Qxb6 {
>0.34/15 59} Rxb6 {-0.41/18 56} 39. d6 {(Re1) 0.36/14 59} Rc6 {-0.80/15 66} 40.
>Rd3 {(Rd4) 0.40/13 30} b6 {(a5) -0.93/14 30} 41. Bd1 {(Kf2) 0.45/13 61} Rc8 {
>(Rc4) -1.31/16 51} 42. Re3 {(Kf2) 0.28/13 61} Qf5 {-1.10/16 84} 43. Be2 {
>0.00/12 64} Qb1+ {-1.55/17 69} 44. Kf2 {0.00/14 63} Qc2 {-1.31/17 66} 45. Kg1 {
>(Re7+) 0.00/13 61} Qxa4 {-1.69/16 59} 46. Re7+ {0.00/12 61} Kh8 {-0.05/17 181}
>47. d7 {1.01/14 61} Rd8 {0.02/20 58} 48. Bg4 {1.50/15 61} Qc6 {0.05/19 70} 49.
>Be3 {(Kh2) 2.20/16 61} Kg8 {1.06/17 72} 50. Bd4 {2.39/15 61} Kf8 {1.34/16 184}
>51. Re6 {2.54/15 61} Qc4 {(Qd5) 1.56/17 112} 52. Rxf6+ {2.70/13 61} Ke7 {
>1.54/17 21} 53. Rh6 {(Rxb6) 2.76/13 61} Rf8 {2.26/17 136} 54. Bh3 {
>(Kh2) 3.33/12 61} b5 {1.75/16 93} 55. Rh7+ {3.65/12 64} Kd6 {2.47/16 27} 56.
>Bf6 {3.65/13 61} Ra8 {(Qd3) 2.66/15 55} 57. Rh4 {3.94/13 61} Qe2 {
>(Qg8) 2.73/16 40} 58. Kh2 {(d8R+) 4.36/13 79} a5 {2.55/16 36} 59. d8=Q+ {
>(d8R+) 4.40/14 60} Rxd8 {2.51/16 19} 60. Bxd8 {4.34/15 60} a4 {2.79/14 12} 61.
>Rd4+ {(Ba5) 4.34/14 60} Kc5 {2.93/17 50} 62. Ba5 {4.44/14 59} Qh5 {
>(Qe3) 3.12/16 54} 63. Bb4+ {4.69/15 72} Kb6 {3.40/18 19} 64. c4 {
>(g4) 4.69/15 59} bxc4 {3.10/17 60} 65. Rxc4 {4.70/15 59} Qe2 {(Qd5) 3.14/17 50}
>66. Rf4 {(Rh4) 4.76/15 59} Qb2 {3.06/15 18} 67. Be7 {4.75/14 59} Qa1 {
>3.30/15 65} 68. Bd8+ {(Bf6) 4.75/13 59} Kc6 {3.25/16 59} 69. Bf6 {
>(Rf6+) 4.72/14 59} Qa2 {3.37/16 50} 70. Re4 {(g4) 4.59/12 77} Kb6 {
>(Qc2) 3.55/15 101} 71. Bg4 {(g4) 4.75/12 96} a3 {(Qc2) 3.59/14 53} 72. Bd8+ {
>6.13/13 53} Kb7 {(Kc6) 3.72/16 52} 73. Re7+ {(Rb4+) 5.93/13 52} Kc6 {3.70/14 18
>} 74. Bf3+ {(Rc7+) 6.33/12 79} Kc5 {3.11/13 8} 75. Re5+ {(Ra7) 6.12/13 48} Kd4
>{3.26/14 14} 76. Ra5 {6.57/13 48} Kc3 {3.91/16 139} 77. Be7 {(Ra6) 7.06/13 58}
>Qf7 {(Qe6) 4.04/14 29} 78. Bxa3 {7.23/14 44} Qf6 {4.16/15 53} 79. Rh5 {
>(Rc5+) 7.33/14 44} Qd8 {(Qg6) 4.25/15 25} 80. g4 {7.41/14 22} Kb3 {4.30/14 27}
>81. Bc5 {7.53/15 69} Kc3 {(Kc4) 4.40/14 55} 82. Kh3 {(Bf2) 7.66/15 68} Qc8 {
>(Qb8) 4.46/16 64} 83. Rd5 {(Bd6) 7.72/14 65} Kc4 {(Qc7) 4.64/15 51} 84. Kh4 {
>(Kg3) 7.87/14 64} Qh8+ {(Qc7) 4.96/16 67} 85. Kg3 {7.93/14 62} Qb8+ {4.98/15 54
>} 86. Bd6 {8.04/14 60} Qh8 {5.20/16 142} 87. g5 {8.20/14 60} Qd8 {
>(Qe8) 5.41/15 106} 88. g6 {8.74/14 58} Qf6 {7.88/17 191} 89. Be4 {8.95/13 63}
>Kb3 {(Qc3+) 12.94/16 621} 90. Be5 {9.51/13 62} Qg5+ {12.94/12 31} 91. Kf3 {
>9.51/13 51} 1-0
>
>
>Sarah.



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