Sharper version 0.03 released!

[Albert Bertilsson]

Geschrieben von: / Posted by: Albert Bertilsson at 12 March 2003 11:34:21:

Hi!
Sharper 0.03 released details below:
Implemented a small opening book to enable variations in the playing.
Added an ini file to set options for the engine.
Found a bug in the legal move control, hope there are no more bugs in that routine now.
Found out that my variable window size search messed up my HT pruning, removed HT pruning temporarily.
Worked on opening books and found a bug in the move validation that caused the engine to hang if there is no piece on the from square.
Added code to start the search with a small window, and then increase the window size. Nice speed gain.
Fixed a time control bug, positions with one legal move are not searched and no longer decrease available time.
/Regards Albert


Sharper home page

[Lyapko George]

Geschrieben von: / Posted by: Lyapko George at 12 March 2003 12:42:00:
Als Antwort auf: / In reply to: Sharper version 0.03 released! geschrieben von: / posted by: Albert Bertilsson at 12 March 2003 11:34:21:

I mean wrong result claims by Sharper:
[Event "Computer chess game"]
[Site "LYAPKO"]
[Date "2003.03.12"]
[Round "1"]
[White "MFChess_10"]
[Black "Sharper_002"]
[Result "1-0"]
[TimeControl "40/300"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O a6 5. Bxc6 dxc6 6. Nxe5 Nxe4 7. Re1
Qd4 8. Qf3 f5 9. Nd3 Be7 10. c3 Qf6 11. Qf4 Bd6 12. Qf3 O-O 13. b4 a5 14.
Bb2 Qg5 15. h4 Qxh4 16. bxa5 Bh2+ 17. Kf1 Rxa5 18. c4 Ng5 19. Qe3 Qxc4 20.
Bxg7 Kxg7 21. Qxg5+ Kh8 22. Qe3 Rd8 23. Qg5 Qxd3+ 24. Re2 Be5 25. Nc3 Be6
26. Kg1 Rda8 27. Rxe5 Rxe5 28. Qf6+ Kg8 29. Qxe5 Qd6 30. Qf6 Rf8 31. Qg5+
Kf7 32. Rb1 b6 33. Qh5+ Kg7 34. Qg5+ Kh8 35. a4 f4 36. Rb2 Rf5 37. Qh4 Kg7
38. Ne4 Qd4 39. Qg4+ Kf8 40. Nc3 Re5 41. Qh4 Re1+ 42. Kh2 h5 43. Qxh5 Qxf2
44. Qh8+ Ke7 45. Qg7+ Ke8 46. Qg6+ Ke7 47. Qg7+ Ke8 48. Qg6+ Kd8 49. Qf6+
Kc8 50. Ne2 Rxe2 51. Qf8+ Kb7 52. Rxb6+ cxb6 53. Qg7+ Ka6 54. Qg5 c5 55. d4
Re1 56. dxc5 Qg1#
{Sharper says: White mates} 1-0
[Event "Computer chess game"]
[Site "LYAPKO"]
[Date "2003.03.12"]
[Round "2"]
[White "Sharper_002"]
[Black "MFChess_10"]
[Result "1-0"]
[TimeControl "40/300"]
1. d4 d5 2. Nc3 Nf6 3. Bf4 Nc6 4. Nb5 e5 5. dxe5 Ne4 6. e6 Bb4+ 7. c3 Ba5
8. f3 Bxe6 9. fxe4 d4 10. b4 dxc3 11. bxa5 Qh4+ 12. g3 Qd8 13. Nxc7+ Kf8
14. Nxa8 Qxa5 15. Qc2 Nd4 16. Qd3 c2+ 17. Kf2 Qc5 18. Be3 Qc4 19. Qxc4 Bxc4
20. Bxd4 Bxa2 21. e3 Bb1 22. Bc5+ Kg8 23. Ne2 b6 24. Bd4 c1=Q 25. Nxc1 Bxe4
26. Bg2 Bxa8 27. Bxa8 b5 28. Rxa7 f6 29. Bxf6 h5 30. Rxg7+ Kf8 31. Rd1 h4
32. Rd8#
{Sharper says: Black mates} 1-0
Best regards,
George

[Albert Bertilsson]

Geschrieben von: / Posted by: Albert Bertilsson at 12 March 2003 13:38:55:
Als Antwort auf: / In reply to: Is this corrected in new version? geschrieben von: / posted by: Lyapko George at 12 March 2003 12:42:00:

Hi George!
No, I didn't know of this problem, I'll fix it later today. Thanx a lot for reporting this!
/Regards Albert

[Lyapko George]

Geschrieben von: / Posted by: Lyapko George at 12 March 2003 13:40:18:
Als Antwort auf: / In reply to: Re: Is this corrected in new version? geschrieben von: / posted by: Albert Bertilsson at 12 March 2003 13:38:55: