SOS Problem with Stalemate?

[Alex Bakker]

Geschrieben von:/Posted by: Alex Bakker am 25 Januar 2000 03:32:36:
I don't know if this problem has been reported before. However, the following was a 40 move in 60 minute game between Crafty 17.7 and SOS where Crafty (after being down most of the game) managed to force a stalemate. On my machine this caused SOS to keep continually counting down (with the engine stuck at ply 99). I eventually aborted the game. When I tried to get SOS to replay the move (after restarting Winboard) I received a first program exited unexpectedly error message. Anyway, here's the game. Cheers Alex
[Event "Computer chess game"]
[Site "ME252479"]
[Date "2000.01.25"]
[Round "-"]
[White "SOS"]
[Black "Crafty-17_7.exe"]
[Result "*"]
[TimeControl "40/3600"]
1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. d4 Nc6 7. Nc3 a6 8.
h3 Rb8 9. Be3 b5 10. Nd2 Bd7 11. Rc1 Na5 12. cxb5 axb5 13. b4 Nc4 14. Bg5
Qc8 15. Kh2 h6 16. Bxf6 exf6 17. Nd5 Qd8 18. Nf4 Nb6 19. Qb3 Re8 20. Rfe1
f5 21. e3 Kf8 22. Rg1 Rc8 23. Bb7 Rb8 24. Bc6 Bxc6 25. Rxc6 Qd7 26. Rgc1
Rb7 27. R1c2 d5 28. Qa3 Na4 29. Nf3 Kg8 30. Qb3 Nb6 31. R6c5 Rd8 32. Ne5
Bxe5 33. dxe5 g5 34. Nh5 Qe6 35. Rxc7 Rxc7 36. Rxc7 Nc4 37. f4 Ra8 38. Rd7
Qb6 39. Nf6+ Kg7 40. Nxd5 Qc6 41. Qc3 Rxa2+ 42. Kg1 Qe6 43. Rd8 gxf4 44.
Nc7 Qxe5 45. Qxe5+ Nxe5 46. gxf4 Nc4 47. Rd3 Rb2 48. Nxb5 Rxb4 49. Nc7 Rb2
50. Ne8+ Kf8 51. Nd6 Nxd6 52. Rxd6 Kg7 53. Rd5 Kg6 54. Rd6+ f6 55. Rd7 Kh5
56. Rd6 Kh4 57. Rxf6 Kg3 58. Rg6+ Kf3 59. Rxh6 Kxe3 60. h4 Kxf4 61. Rg6 Kf3
62. h5 f4 63. h6 Rb1+ 64. Kh2 Rb5 65. Rf6 Rh5+ 66. Kg1 Rg5+ 67. Kf1 Rd5 68.
Ke1 Rh5 69. Kd2 Kg4 70. Kd3 Kg5 71. Rd6 Rxh6 72. Rxh6 Kxh6 73. Ke2 Kg5 74.
Kf2 Kg4 75. Kg2 Kf5 76. Kf1 Kg4 77. Kg2 f3+ 78. Kf1 Kg3 79. Kg1 Kf4 80. Kf2
Kg4 81. Kf1 Kg3 82. Kg1 f2+ 83. Kf1 Kf3
{Game aborted} *

[Volker Pittlik]

Geschrieben von:/Posted by: Volker Pittlik am 25 Januar 2000 21:54:20:
Als Antwort auf:/As an answer to: SOS Problem with Stalemate? geschrieben von:/posted by: Alex Bakker am 25 Januar 2000 03:32:36:

I don't know if this problem has been reported before. However, the following was a 40 move in 60 minute game between Crafty 17.7 and SOS where Crafty (after being down most of the game) managed to force a stalemate. On my machine this caused SOS to keep continually counting down (with the engine stuck at ply 99). I eventually aborted the game. When I tried to get SOS to replay the move (after restarting Winboard) I received a first program exited unexpectedly error message. Anyway, here's the game. Cheers Alex

...
Hm, no error occurs here. Everything looks normal. Here is the end of my winboard.debug for this game:

31703 second: Crafty v17.7
31703 second:
31703 second: White(1):
31703 second: tellics set 1 Crafty v17.7
31703 second: kibitz Hello from Crafty v17.7!
31703 second: tellics set 1 Crafty v17.7 (1 cpus)
31703 second: kibitz Hello from Crafty v17.7!
31703 second: game/60 minutes primary time control
31703 second: pondering enabled.
31703 first : Sun Feb 15 15:34:12 1970
31703 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31703 first : ------------------
31703 first : 8 |. . . . . . . . |
31703 first : 7 |. . . . . . . . |
31719 first : 6 |. . . . . . . . |
31719 first : 5 |. . . . . . . . |
31719 first : 4 |. . . . . . . . |
31719 first : 3 |. . . . . k . . |
31719 first : 2 |. . . . . p . . |
31719 first : 1 |. . . . . K . . |
31719 first : ------------------
31719 first : a b c d e f g h
31719 first : Move number 84 of SOS.
31719 first : Expected duration is 37:46:40.
31719 first : Maximum is ENORMOUS
31719 first : Es werden 00:00.00 angerechnet, erlaubt sind 37:46:40
31719 first : No moves !
31719 first : Pat ! A draw.
31719 first : Sun Feb 15 15:34:12 1970
31719 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31719 first : ------------------
31719 first : 8 |. . . . . . . . |
31719 first : 7 |. . . . . . . . |
31719 irst : 6 |. . . . . . . . |
31719 first : 5 |. . . . . . . . |
31719 first : 4 |. . . . . . . . |
31719 first : 3 |. . . . . k . . |
31719 first : 2 |. . . . . p . . |
31719 first : 1 |. . . . . K . . |
31719 first : ------------------
31719 first : a b c d e f g h
31719 first : Move number 84 of SOS.
31719 first : Expected duration is 59:00.00.
31719 first : Maximum is 01:58:00
31719 first : Es werden 00:00.00 angerechnet, erlaubt sind 59:00.00
31719 first : No moves !
31719 first : Pat ! A draw.
31719 first : Sun Feb 15 15:34:12 1970
31719 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31719 first : ------------------
31719 first : 8 |. . . . . . . . |
31719 first : 7 |. . . . . . . . |
31719 first : 6 |. . . . . . . . |
31719 first : 5 |. . . . . . . . |
31719 first : 4 |. . . . . . . . |
31719 first : 3 |. . . . . k . . |
31719 first : 2 |. . . . . p . . |
31719 first : 1 |. . . . . K . . |
31719 first : ------------------
31719 first : a b c d e f g h
31719 first : Move number 84 of SOS.
31719 first : Expected duration is 59:00.00.
31719 first : Maximum is 01:58:00
31719 first : Es werden 00:00.00 angerechnet, erlaubt sind 59:00.00
31719 first : No moves !
31734 first : Pat ! A draw.
31734 first : Sun Feb 15 15:34:12 1970
31734 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31734 first : ------------------
31734 first : 8 |. . . . . . . . |
31734 first : 7 |. . . . . . . . |
31734 first : 6 |. . . . . . . . |
31734 first : 5 |. . . . . . . . |
31734 first : 4 |. . . . . . . . |
31734 first : 3 |. . . . . k . . |
31734 first : 2 |. . . . . p . . |
31734 first : 1 |. . . . . K . . |
31734 first : ------------------
31734 first : a b c d e f g h
31734 first : Move number 84 of SOS.
31734 first : Expected duration is 01:00:00.
31734 first : Maximum is 02:00:00
31734 first : Es werden 00:00.00 angerechnet, erlaubt sind 01:00:00
31734 first : No moves !
31734 first : Pat ! A draw.
31734 first : Sun Feb 15 15:34:12 1970
31734 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31734 first : ------------------
31734 first : 8 |. . . . . . . . |
31734 first : 7 |. . . . . . . . |
31734 first : 6 |. . . . . . . . |
31734 first : 5 |. . . . . . . . |
31734 first : 4 |. . . . . . . . |
31734 first : 3 |. . . . . k . . |
31734 first : 2 |. . . . . p . . |
31734 first : 1 |. . . . . K . . |
31734 first : ------------------
31734 first : a b c d e f g h
31734 first : Move number 84 of SOS.
31734 first : Expected duration is 01:00:00.
31734 first : Maximum is 02:00:00
31734 first : Es werden 00:00.00 angerechnet, erlaubt sind 01:00:00
31734 first : No moves !
31734 first : Pat ! A draw.
Interrupting first
96422 first : force
96422 second: force
96422 first : quit
96422 second: quit

Best wishes
Volker

[Volker Pittlik]

Geschrieben von:/Posted by: Volker Pittlik am 25 Januar 2000 21:58:13:
Als Antwort auf:/As an answer to: Re: SOS Problem with Stalemate? geschrieben von:/posted by: Volker Pittlik am 25 Januar 2000 21:54:20:
Look at the date!

31703 first : Sun Feb 15 15:34:12 1970
31703 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31719 first : No moves !
31719 first : Pat ! A draw.
31719 first : Sun Feb 15 15:34:12 1970
31719 first : 8/8/8/8/8/5k2/5p2/5K2 w - -
31719 first : ------------------
Best wishes
Volker

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and so on