Author: Will Singleton
Date: 20:31:36 01/06/03
Go up one level in this thread
On January 06, 2003 at 18:54:48, Omid David Tabibi wrote:
>Genesis v1.09 can be downloaded at http://www.cs.biu.ac.il/~davoudo
>
>Improvements:
>
>1.09 (7.1.03)
>- Implemented futility pruning
>- Modified quiescence search (about 75% less q-nodes)
>- Improved null-move pruning
>- Improved data structures (thanks to Dann Corbit)
>- Fixed a bug in loading positions under WinBoard
>
>Omid.
Genesis has serious problems with this position, looks like a major search bug.
It played 63.Kf7, with a plus score. Not to mention that it stopped moving
after that. Perhaps this bug was introduced with the recent modifications?
[D]8/6p1/4P1Kp/7P/7b/p7/2k5/2N5 w - - 0 63
Genesis' pv:
1.g6f7 c2d2 2.e6e7 h4e7 3.f7e7 d2e3 4.e7f7 e3f4 5.f7g6 f4g4 6.c1a2 g4f4 7.g6g7
f4g5 8.a2b4
[Event "Computer chess game"]
[Site "MICRON"]
[Date "2003.01.06"]
[Round "1"]
[White "Genesis 1.09"]
[Black "Amateur 2.4"]
[Result "0-1"]
[TimeControl "40/300"]
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. O-O d6 8.
Nc3 Nf6 9. Be3 Nc6 10. f4 Qc7 11. Na4 b5 12. Nb6 Rb8 13. Nxc8 Qxc8 14. a4
Nb4 15. axb5 Nxd3 16. Qxd3 Rxb5 17. f5 O-O 18. Bg5 h6 19. Bxf6 Bxf6 20.
fxe6 Bxb2 21. Rab1 Bf6 22. exf7+ Rxf7 23. Qxd6 Qxc2 24. Nd2 Rxb1 25. Rxb1
Bg5 26. Qb8+ Rf8 27. Qb3+ Qxb3 28. Nxb3 Rb8 29. Kf2 Rb4 30. g3 a5 31. h4
Be7 32. Nd2 Rxb1 33. Nxb1 Bb4 34. Ke3 a4 35. Kd4 Be1 36. h5 Bxg3 37. e5 Kf7
38. Kd5 Ke7 39. Na3 Bf4 40. Nc2 Ke8 41. e6 Ke7 42. Na3 Bc1 43. Nc2 a3 44.
Nb4 Bf4 45. Na2 Bg3 46. Nc1 Kf6 47. Na2 Ke7 48. Nc1 Bf4 49. Na2 Bd6 50. Nc3
Bg3 51. Na2 Bd6 52. Nc3 Bc7 53. Na2 Bf4 54. Ke4 Bg5 55. Ke5 Bh4 56. Kf5 Bg3
57. Nc1 Kd6 58. Na2 Bh4 59. Nc3 Kc5 60. Kg6 Kc4 61. Na2 Kb3 62. Nc1+ Kc2
63. Kf7 Kxc1
{Black wins on time} 0-1
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