Author: Neil Schemenauer
Date: 21:56:02 12/19/05
I think I've found a bug in Rybka Beta (maybe in Preview as well).
The engine comes up with an invalid PV (0-0-0 when castling is not
possible). It could be a hash-table bug since to reproduce it I
have to start from the beginning of the game using the analysis mode
of the Shredder UI.
The full game follows. Any comments on my (lack of) style would
appreciated. I was playing against CSTal 2 with "reduce strength"
set to 1, the weakest setting. I managed to win against that
setting for the first time today and this game was one of my wins.
The knight sac was probably not the best idea but I wanted to see if
I could pull it off. Onward to level 50. :-)
[D]rn2k2r/ppqbb1pp/3p4/3n2N1/1P3B2/P2B4/2PQ1PPP/R4RK1 b kq -
Engine: Rybka 1.0 Beta 32-bit (80 MB)
by Vasik Rajlich
8.00 0:01 +1.48 17...Nc6 18.Bg3 Ne5 19.Ne4 Nf6 (44.744) 25
9.00 0:03 +1.58 17...Nc6 18.Bg3 Ne5 19.Bxh7 O-O-O
20.Qxd5 (100.680) 27
10.00 0:08 +1.17 17...Nc6 18.Bg3 Ne5 19.c4 Bxg5
20.Qxg5 Nxd3 21.Qxd5 (227.570) 26
10.02 0:10 +1.34 17...Nxf4 18.Qxf4 O-O-O 19.Nf7 Rhf8
20.b5 d5 (291.442) 29
11.01 0:16 +1.64 17...Nxf4 18.Qxf4 O-O-O 19.Rae1 Nc6
20.Ne6 Bxe6 21.Rxe6 Bf6 (468.531) 31
12.01 0:21 +1.66 17...Nxf4 18.Qxf4 O-O-O 19.Rae1 Nc6
20.Ne6 Bxe6 21.Rxe6 Bf6 22.Qe3 (678.258) 32
[Event "?"]
[Site "?"]
[Date "2005.12.19"]
[Round "?"]
[White "Neil Schemenauer"]
[Black "CSTal 2"]
[Result "1-0"]
1. e4 d6 2. d4 e5 3. Nf3 f6 4. Nc3 Nc6 5. d5 Nb4 6. a3 Na6
7. b4 Bd7 8. Be2 Be7 9. O-O f5 10. Bd3 f4 11. Ne2 Nb8
12. Nxf4 exf4 13. Bxf4 Nf6 14. e5 Nxd5 15. exd6 cxd6
16. Qd2 Qc7 17. Ng5 Nf6 18. Rfe1 Nc6 19. c4 Kf8 20. Qc2 Nd4
21. Qc3 Nf5 22. Ne6+ Bxe6 23. Rxe6 Nh4 24. c5 Qc6 25. f3
Nxf3+ 26. gxf3 Nh5 27. Be4 Qd7 28. cxd6 Qxe6 29. dxe7+ Qxe7
30. Be3 Kf7 31. Bd5+ Ke8 32. Re1 Kd8 33. Qd2 Qd7 34. Rd1
Nf6 35. Bxb7 Qxd2 36. Rxd2+ Kc7 37. Bxa8 Rxa8 38. Bd4 a6
39. Kg2 Kc6 40. Kg3 Rd8 41. Rc2+ Kd6 42. Bxf6 gxf6 43. Rd2+
Ke7 44. Rxd8 Kxd8 45. Kg4 Ke7 46. Kf5 Kf7 47. f4 h5 48. a4
Ke7 49. b5 axb5 50. axb5 Ke8 51. b6 Kd7 52. Kxf6 h4 53. f5
Kc6 54. Ke7 h3 55. f6 Kxb6 56. f7 Kc5 57. f8=Q Kc4 58. Qf3
Kb4 59. Qxh3 Kc4 1-0
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