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Subject: buggy move from rybka 13d

Author: Bahram Namjou

Date: 16:22:58 02/22/06


Can anyone explain why rybka 13d plays (Qg4??) with the high score of +4.3!! in
this game and then in this way lost the game in just next move from
H10(Qxg4)!...is this another bug that I didn't know that? ...thanks, bn

[d] 8/5p2/7k/4p1q1/4Q3/P2p1Ppp/8/1R5K w - - 0 50




[Date "2006.02.22"]
[Round "?"]
[White  Rybka ]
[Black Hiarcs 10]
[Result "0-1"]
[PlyCount "118"]
[EventDate "2006.02.22"]
[TimeControl "3600+15"]

 50.Qg4 {(Qxd3) 4.35/13 141} Qxg4 {-5.31/16 42} 51. fxg4 {-2.79/19 7} e4 {
-5.56/16 18} 52. Rb6+ {(Rb2) -10.19/19 222} Kg5 {-6.88/15 42} 53. Rd6 {875}
Kxg4 {-320.00/21 0} 54. a4 {(Kg1) -320.00/22 1} f5 {-#11/62 0} 55. Rd5 {
(a5) -320.00/15 13} f4 {-#8/62 0} 56. Rb5 {(Rd7) -320.00/8 0} d2 {-#6/62 0} 57.
Rd5 {0} e3 {-320.00/8 0} 58. Kg1 {(Rd7) -320.00/20 1} e2 {-#3/62 0} 59. Rxd2 {
(Rg5+) -320.00/23 1} e1=Q# {-#1/62 0} 0-1




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