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Subject: Re: Why does Rybka Mutiliate Hiarcs?

Author: ludicrous

Date: 18:44:45 12/30/05

Go up one level in this thread


I know what you mean.  See the example below, blitzed in 5 minutes, Hiarcs 10
almost dropping its flag, Rybka still having more than a minute left.



[White "Hiarcs 10"]
[Black "Rybka 1.0 Beta 32-bit"]
[Result "0-1"]
[ECO "D47"]
[Annotator "0.68;0.38"]
[PlyCount "162"]
[TimeControl "300"]

{W=10.3 ply; 172kN/s  B=9.8 ply; 53kN/s} 1. d4 {0} d5 {0} 2. c4 {0} e6 {0} 3.
Nc3 {0} c6 {0} 4. Nf3 {0} Nf6 {0} 5. e3 {0} Nbd7 {0} 6. Bd3 {0} dxc4 {0} 7.
Bxc4 {0} b5 {0} 8. Bd3 {0} Bb7 {0} 9. O-O {0} b4 {0} 10. Ne4 {
Both last book move 0} Nd5 {0.38/9 8} 11. Ng3 {(a3) 0.68/11 22} Be7 {
(N5f6) 0.22/10 6} 12. e4 {0.70/11 12} N5b6 {0.25/11 11} 13. Be3 {
(Bf4) 0.72/11 12} O-O {(Rc8) 0.23/9 3} 14. Qc2 {(Rc1) 0.56/12 28} c5 {0.11/10 7
} 15. e5 {(Rac1) 0.31/10 8} Bxf3 {(Rc8) -0.27/10 8} 16. gxf3 {-0.24/12 32} Rc8
{-0.35/10 8} 17. Ba6 {(Qe2) -0.05/11 7}

Rybka played the following exchange sacrifice almost instantaneously

[D]2rq1rk1/p2nbppp/Bn2p3/2p1P3/1p1P4/4BPN1/PPQ2P1P/R4RK1 b - - 0 17


cxd4 {(Rc7) -0.30/11 3} 18. Bxc8 {
0.18/10 1} Nxe5 {-0.36/11 5} 19. Ba6 {(Qe4) -0.45/12 30} Nxf3+ {-0.67/10 9} 20.
Kh1 {-0.43/11 5} dxe3 {-0.62/10 3} 21. fxe3 {-0.55/10 7} Ne5 {(Qd2) -0.81/10 7}
22. Rad1 {-0.26/9 3} Qb8 {-0.88/10 6} 23. e4 {-0.48/10 5} Nbd7 {-1.11/10 7} 24.
Qf2 {(Be2) -0.55/10 4} Nc5 {-1.08/9 2} 25. Be2 {-0.55/10 3} Rc8 {
(f6) -1.00/10 15} 26. Nh5 {(Rc1) -0.44/9 4} g6 {-1.49/10 7} 27. Ng3 {
(Qg2) -0.64/10 6} h5 {-1.27/9 5} 28. Nxh5 {-0.41/10 3} gxh5 {(Nxe4) -0.95/10 11
} 29. Bxh5 {-0.23/9 2} Kh7 {(Nxe4) -0.81/9 5} 30. Bxf7 {-0.39/9 4} Rf8 {
-0.78/9 4} 31. Qg3 {-0.48/9 2} Nxe4 {-0.64/10 7} 32. Qh3+ {-0.30/9 3} Kg7 {
-0.46/10 15} 33. Qxe6 {-0.22/9 3} Qc7 {(Rxf7) -0.44/9 11} 34. Rg1+ {
(Rd5) -0.30/9 4} Ng5 {(Bg5) -0.56/10 6} 35. Rc1 {(Rde1) 0.00/10 3} Qxc1 {
-0.90/11 6} 36. Qxe7 {0.00/10 1} Qxg1+ {-1.05/10 2} 37. Kxg1 {0.00/11 1} Ngf3+
{-1.02/11 2} 38. Kg2 {0.00/12 3} Rxf7 {-1.07/11 2} 39. Qxb4 {0.00/11 1} Kh6 {
-1.16/10 4} 40. Qd6+ {-0.02/11 2} Kh5 {-1.16/10 2} 41. b4 {-0.05/9 2} Ne1+ {
-1.23/10 2} 42. Kg1 {-0.01/9 0} N1d3 {(Rg7+) -1.33/10 2} 43. a3 {
(b5) -0.45/11 10} Rf2 {-1.56/9 1} 44. Qd5 {-0.29/10 2} a6 {(Kg5) -1.43/9 2} 45.
a4 {(Qxe5+) -0.67/9 2} Kg4 {-1.77/8 3} 46. Qe6+ {(Qe4+) -1.74/10 7} Kf4 {
-2.04/10 4} 47. Qd6 {-1.76/11 2} Ke3 {-2.02/9 5} 48. Qe7 {-1.52/10 2} Rb2 {
(Kd4) -2.25/8 5} 49. Qa7+ {-1.60/8 1} Kf3 {(Ke4) -2.32/9 3} 50. Qa8+ {
-1.61/10 2} Kf4 {-2.24/7 0} 51. Qf8+ {(Qa7) -1.62/10 1} Ke3 {-2.26/9 3} 52.
Qh6+ {-1.62/9 1} Kd4 {(Ke4) -1.91/10 12} 53. Qf6 {(Qb6+) -1.70/9 2} Rb1+ {
(Ke4) -2.12/9 4} 54. Kg2 {-1.09/9 0} Ke4 {(Nxb4) -2.34/9 2} 55. Qe7 {
(Qb6) -1.77/9 2} Rxb4 {-2.48/7 1} 56. Kg3 {(h4) -2.21/10 5} Rb6 {
(Ke3) -2.61/8 3} 57. Qh4+ {(h3) -1.79/9 1} Ke3 {(Kd5) -2.99/11 1} 58. Qg5+ {
-2.33/11 2} Ke2 {-3.08/11 1} 59. Qh5+ {-2.37/11 1} Kd2 {-3.16/11 1} 60. Qg5+ {
-2.55/11 1} Kc3 {-3.19/11 1} 61. Qe3 {(Qf5) -2.58/11 2} Rg6+ {-3.55/10 1} 62.
Kh4 {-2.49/11 1} Rg4+ {-3.47/10 1} 63. Kh5 {-2.49/11 1} a5 {-3.66/10 1} 64. h3
{(Qa7) -2.59/10 1} Rxa4 {-3.83/9 0} 65. Qb6 {-2.63/9 1} Ra1 {(Nc4) -3.79/9 1}
66. Kg5 {-2.63/10 1} a4 {(Nc4) -4.16/8 1} 67. Qa5+ {-2.71/9 1} Kd4 {-4.33/8 1}
68. h4 {(Qb6+) -2.71/9 1} a3 {(Rg1+) -4.84/6 0} 69. Qb6+ {(Qa4+) -2.84/9 2} Kc3
{-5.00/8 1} 70. Qa5+ {-2.88/9 1} Kc2 {-5.42/9 1} 71. Qc7+ {(Qa4+) -2.78/9 1}
Kd2 {-5.17/10 1} 72. Qa5+ {-2.85/9 0} Ke3 {-4.99/10 1} 73. Qa7+ {-2.88/9 0} Ke2
{-5.59/10 5} 74. h5 {(Qa4) -2.88/9 1} a2 {-5.64/7 0} 75. Kh6 {-2.77/9 0} Ng4+ {
(Nc6) -6.78/7 0} 76. Kh7 {-3.05/10 2} Nf6+ {-5.91/8 1} 77. Kh6 {-2.93/9 0} Nd5
{(Nxh5) -7.01/8 1} 78. Kh7 {(Kg6) -3.66/9 1} N3b4 {-8.22/9 1} 79. Qg7 {
(Qd4) -9.72/11 3} Rb1 {-10.02/9 0} 80. Qg2+ {(Qg4+) -9.72/9 0} Kd3 {-10.08/9 1}
81. Qg3+ {-9.73/8 0} Kc4 {(Kc2) -10.08/9 0} 0-1




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