Skippers sixty memorable bugs : nr ?

[Henk]

Why 66 .. Nd3 ??

[Maybe because I added some evaluation terms other then Material ? Also Skipper forces three fold repetition all the time even if it is ahead in material.]

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2016.01.25"]
[Round "-"]
[White "Fairy-Max 4.8S"]
[Black "SkipperWinb"]
[Result "1/2-1/2"]
[TimeControl "120"]
[Annotator "1. +0.07 1... +0.00"]

1. d3 {+0.07/8} h6 {+0.00/15 2.5} 2. Be3 {+0.07/8 1.9} Nf6 {+0.02/14 2.4}
3. Nf3 {+0.09/8 1.7} e6 {+0.02/13 2.3} 4. c4 {-0.02/8 2.3} Nc6
{+0.02/13 2.3} 5. Nc3 {-0.10/8 2.3} Ng4 {+0.01/13 2.3} 6. Bf4 {-0.17/8 1.4}
g5 {+0.02/13 2.2} 7. Bg3 {-0.13/8 1.6} Nf6 {+0.00/12 2.2} 8. h4
{-0.08/8 2.2} g4 {+0.00/14 2.1} 9. Nh2 {-0.19/9 4} d5 {+0.00/12 2.1} 10. e4
{-0.03/8 3} d4 {+0.01/13 2.0} 11. Nb1 {-0.02/9 1.6} e5 {+0.00/11 2.0} 12.
Be2 {+0.16/9 2.2} Rg8 {+0.00/12 2.0} 13. O-O {+0.16/8 1.9} a6
{+0.00/12 1.9} 14. Nd2 {-0.08/8 1.8} Qd7 {+0.01/14 1.9} 15. Qa4
{-0.28/8 1.3} Nh5 {+0.20/11 1.8} 16. Bxg4 {-0.52/10 2.6} Rxg4
{+1.30/13 1.9} 17. Nxg4 {-0.98/10 1.7} Qxg4 {+1.31/13 1.8} 18. Bh2
{-1.11/10 4} Nf4 {+1.90/12 1.7} 19. Bxf4 {-1.09/10 1.4} Qxf4 {+1.88/15 1.7}
20. Nf3 {-1.48/10 1.9} Be7 {+1.89/15 1.7} 21. Qc2 {-1.14/8 1.6} Bxh4
{+1.92/13 2.0} 22. Nxh4 {-1.26/11 2.2} Qxh4 {+1.90/13 2.0} 23. Qd2
{-1.35/10 4} b6 {+1.90/14 1.9} 24. f4 {-1.29/8 1.0} exf4 {+1.90/13 1.9} 25.
Rxf4 {-1.39/9 1.2} Qg5 {+1.90/13 1.9} 26. Rf2 {-1.46/9 1.1} Ra7
{+1.90/12 1.8} 27. Qxg5 {-1.26/10 1.6} hxg5 {+1.91/13 1.8} 28. Rf3
{-1.25/10 0.9} Ke7 {+1.92/16 1.7} 29. Rg3 {-1.19/11 1.1} f6 {+1.91/16 1.7}
30. a4 {-1.21/11 1.9} Ne5 {+1.92/12 1.6} 31. b4 {-1.22/12 1.2} Bd7
{+1.91/15 1.6} 32. Ra2 {-1.17/11 1.1} Kf7 {+1.90/14 1.5} 33. Ra1
{-1.16/11 1.1} Ke7 {+0.00/16 1.5} 34. Ra2 {-0.01/18 0.8} c6 {+1.91/15 1.5}
35. Rb2 {-1.15/10 1.0} Ra8 {+1.91/12 1.4} 36. a5 {-1.18/10 1.0} b5
{+1.91/15 1.4} 37. c5 {-1.09/14 0.9} Rh8 {+1.91/14 1.3} 38. Rd2
{-1.16/14 1.2} Be6 {+1.91/15 1.3} 39. Rb2 {-1.11/13 0.6} Bd7 {+0.00/15 1.3}
40. Rd2 {-0.01/20 0.8} Kf7 {+1.91/16 1.3} 41. Rb2 {-1.16/14 0.6} Ng4
{+1.91/15 0.8} 42. Rc2 {-1.17/13 0.8} Ne3 {+1.92/15 0.8} 43. Rf2
{-1.15/13 0.8} Bg4 {+1.91/15 0.8} 44. Rb2 {-2.40/13 1.7} Ke7 {+1.91/14 0.8}
45. Rb1 {-1.76/11 0.9} Kf8 {+1.91/14 0.8} 46. Rb2 {-1.12/12 0.8} Rh6
{+1.91/15 0.8} 47. Rf2 {-1.12/13 0.5} Ke7 {+1.91/16 0.8} 48. Rb2
{-2.38/13 0.7} Rh4 {+1.91/15 0.8} 49. Rb1 {-2.39/14 0.8} f5 {+2.77/15 0.7}
50. exf5 {-2.76/15 1.6} Nxf5 {+2.77/17 0.8} 51. Re1+ {-2.98/15 1.1} Kf6
{+2.80/17 0.7} 52. Rf1 {-2.68/14 0.6} Ke5 {+2.80/15 0.7} 53. Re1+
{-2.53/14 0.5} Kf4 {+2.80/17 0.7} 54. Rxg4+ {-3.09/13 0.5} Kxg4
{+2.80/18 0.7} 55. Re4+ {-3.13/15 0.5} Kg3 {+3.59/14 0.6} 56. Re6
{-3.81/15 0.8} Ne3 {+3.57/14 0.6} 57. Rg6 {-3.26/15 0.5} Rf4 {+3.57/16 0.6}
58. Rxg5+ {-4.52/21 0.4} Kh4 {+3.57/17 0.7} 59. g3+ {-4.68/22 0.4} Kxg5
{+5.92/22 0.6} 60. gxf4+ {-4.62/23 0.5} Kxf4 {+5.94/26 0.6} 61. Kf2
{-5.93/17 0.7} Nc2 {+5.94/27 0.6} 62. Ke2 {-6.15/17 0.6} Nxb4
{+5.94/20 0.5} 63. Kd2 {-12.47/16 1.0} Kg3 {+5.94/21 0.6} 64. Ke2
{-12.45/16 0.5} Kg4 {+5.94/23 0.5} 65. Kd2 {-13.11/17 0.5} Kg5
{+5.94/25 0.5} 66. Ke2 {-12.43/16 0.8} Nxd3 {+0.82/24 0.6} 67. Kxd3
{-2.21/22 0.5} Kg4 {+0.82/32 0.6} 68. Ke4 {-2.67/23 0.4} Kg5 {+0.82/26 0.5}
69. Kd3 {-0.01/26 0.4} Kg4 {+0.00/33 0.5} 70. Ke4 {-0.01/28 0.2} Kg5
{+0.00/27 0.5} 71. Kd3 {-0.01/28 0.7}
{XBoard adjudication: repetition draw} 1/2-1/2
[/pgn]

[Henk]

Not reproducible (of course)

[d] 8/8/p1p5/PpP3k1/1n1p4/3P4/4K3/8 b - - 7 66

Code: Select all

Depth  Value   Time(seconds)   Nodes
 27    5.1856       4.24     5654976   b4d5 e2e1 d5c3 e1d2 c3a4 d2c1 a4c5 c1c2 g5f4 c2d2 f4g3 d2c2 g3g2 c2d2 g2f1 d2d1 c5d3 d1d2 d3f4 d2c1 b5b4 c1d1 d4d3 d1d2 f1g1 d2c1 g1f1 
 26    5.9748       3.10     3957754   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 g4f3 d2c1 f4d3 c1b1 d3c5 b1c1 c5b3 c1c2 b3a5 c2d3 c6c5 d3c2 a5c4 c2b1 b5b4 b1a1 b4b3 a1b1 b3b2 b1a2 
 25    5.1712       2.19     3278915   b4d5 e2e1 d5c3 e1d2 c3a4 d2c1 a4c5 c1c2 g5f5 c2d2 c5b3 d2c2 b3a5 c2b1 a5b3 b1c2 b3c5 c2d2 a6a5 d2c2 b5b4 c2d2 a5a4 d2c2 a4a3 
 24    5.1640       0.35      479677   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 f4e6 d2c1 e6c5 c1c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 
 23    5.1640       2.07     2652448   b4d5 e2e1 d5c3 e1d2 c3a4 d2c1 a4c5 c1c2 g5f5 c2d2 c5b3 d2c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 
 22    5.1640       0.19      285638   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 f4e6 d2c1 e6c5 c1c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 
 21    5.1640       1.47     2506721   b4d5 e2e1 d5c3 e1d2 c3a4 d2c1 a4c5 c1c2 g5f5 c2d2 c5b3 d2c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 
 20    5.1640       0.15      201506   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 f4e6 d2c1 e6c5 c1c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 c2b3 b7c5 b3c2 c5b7 
 19    5.1640       0.13      170597   b4d5 e2e1 d5c3 e1f1 c3a4 f1e1 a4c5 e1d2 c5b3 d2c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 
 18    4.4000       0.09       86335   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 
 17    5.1640       0.08       91579   b4d5 e2e1 d5c3 e1f1 c3a4 f1e1 a4c5 e1d2 c5b3 d2c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 a5b3 b1c2 b3a5 c2b1 
 16    4.4000       0.06       62634   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 
 15    5.1640       0.05       72006   b4d5 e2e1 d5c3 e1f1 c3a4 f1e1 a4c5 e1d2 c5b3 d2d1 b3a5 d1c2 a5b7 c2b1 b7c5 
 14    4.4000       0.03       54955   b4d5 e2d2 d5f4 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 c2d2 g4g5 d2c2 g5g4 
 13    5.1496       0.02       39495   b4d5 e2e1 d5c3 e1f1 c3a4 f1e1 a4c5 e1d2 c5b3 d2d1 b3a5 d1c2 a5b7 
 12    4.4000       0.02       26919   b4d5 e2f3 g5f5 f3e2 d5f4 e2d2 f4e6 d2c1 f5f4 c1b1 e6c5 b1c2 
 11    4.4000       0.02       22998   b4d5 e2e1 b5b4 e1d1 d5c3 d1c1 c3a4 c1b1 a4c5 b1c2 b4b3 c2b2 
 10    4.3496       0.01       14434   b4d5 e2f3 d5f4 f3e4 f4e6 e4e5 e6c5 e5d4 c5b3 d4c3 b3a5 
  9    3.6216       0.00        5232   b4d5 e2e1 b5b4 e1d1 b4b3 d1c1 g5g6 c1b1 g6f7 
  8    3.6216       0.01        4498   b4d5 e2e1 b5b4 e1d1 b4b3 d1c1 g5f6 c1b1 
  7    3.6216       0.00        1137   b4d5 e2d1 b5b4 d1c1 b4b3 c1b1 g5g6 
  6    3.6216       0.00         742   b4d5 e2d1 b5b4 d1c1 b4b3 c1b1 
  5    3.6216       0.00         456   b4d5 e2d1 b5b4 d1c1 b4b3 
  4    3.6216       0.00         299   b4d5 e2d1 b5b4 d1c1 
  3    3.6216       0.00         131   b4d5 e2d1 b5b4 
  2    3.6216       0.00          85   b4d5 e2d1 
  1    3.6216       0.03          32   b4d5 

[Daniel Anulliero]

Why 66 .. Nd3 ??

[Maybe because I added some evaluation terms other then Material ? Also Skipper forces three fold repetition all the time even if it is ahead in material.]

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2016.01.25"]
[Round "-"]
[White "Fairy-Max 4.8S"]
[Black "SkipperWinb"]
[Result "1/2-1/2"]
[TimeControl "120"]
[Annotator "1. +0.07 1... +0.00"]

1. d3 {+0.07/8} h6 {+0.00/15 2.5} 2. Be3 {+0.07/8 1.9} Nf6 {+0.02/14 2.4}
3. Nf3 {+0.09/8 1.7} e6 {+0.02/13 2.3} 4. c4 {-0.02/8 2.3} Nc6
{+0.02/13 2.3} 5. Nc3 {-0.10/8 2.3} Ng4 {+0.01/13 2.3} 6. Bf4 {-0.17/8 1.4}
g5 {+0.02/13 2.2} 7. Bg3 {-0.13/8 1.6} Nf6 {+0.00/12 2.2} 8. h4
{-0.08/8 2.2} g4 {+0.00/14 2.1} 9. Nh2 {-0.19/9 4} d5 {+0.00/12 2.1} 10. e4
{-0.03/8 3} d4 {+0.01/13 2.0} 11. Nb1 {-0.02/9 1.6} e5 {+0.00/11 2.0} 12.
Be2 {+0.16/9 2.2} Rg8 {+0.00/12 2.0} 13. O-O {+0.16/8 1.9} a6
{+0.00/12 1.9} 14. Nd2 {-0.08/8 1.8} Qd7 {+0.01/14 1.9} 15. Qa4
{-0.28/8 1.3} Nh5 {+0.20/11 1.8} 16. Bxg4 {-0.52/10 2.6} Rxg4
{+1.30/13 1.9} 17. Nxg4 {-0.98/10 1.7} Qxg4 {+1.31/13 1.8} 18. Bh2
{-1.11/10 4} Nf4 {+1.90/12 1.7} 19. Bxf4 {-1.09/10 1.4} Qxf4 {+1.88/15 1.7}
20. Nf3 {-1.48/10 1.9} Be7 {+1.89/15 1.7} 21. Qc2 {-1.14/8 1.6} Bxh4
{+1.92/13 2.0} 22. Nxh4 {-1.26/11 2.2} Qxh4 {+1.90/13 2.0} 23. Qd2
{-1.35/10 4} b6 {+1.90/14 1.9} 24. f4 {-1.29/8 1.0} exf4 {+1.90/13 1.9} 25.
Rxf4 {-1.39/9 1.2} Qg5 {+1.90/13 1.9} 26. Rf2 {-1.46/9 1.1} Ra7
{+1.90/12 1.8} 27. Qxg5 {-1.26/10 1.6} hxg5 {+1.91/13 1.8} 28. Rf3
{-1.25/10 0.9} Ke7 {+1.92/16 1.7} 29. Rg3 {-1.19/11 1.1} f6 {+1.91/16 1.7}
30. a4 {-1.21/11 1.9} Ne5 {+1.92/12 1.6} 31. b4 {-1.22/12 1.2} Bd7
{+1.91/15 1.6} 32. Ra2 {-1.17/11 1.1} Kf7 {+1.90/14 1.5} 33. Ra1
{-1.16/11 1.1} Ke7 {+0.00/16 1.5} 34. Ra2 {-0.01/18 0.8} c6 {+1.91/15 1.5}
35. Rb2 {-1.15/10 1.0} Ra8 {+1.91/12 1.4} 36. a5 {-1.18/10 1.0} b5
{+1.91/15 1.4} 37. c5 {-1.09/14 0.9} Rh8 {+1.91/14 1.3} 38. Rd2
{-1.16/14 1.2} Be6 {+1.91/15 1.3} 39. Rb2 {-1.11/13 0.6} Bd7 {+0.00/15 1.3}
40. Rd2 {-0.01/20 0.8} Kf7 {+1.91/16 1.3} 41. Rb2 {-1.16/14 0.6} Ng4
{+1.91/15 0.8} 42. Rc2 {-1.17/13 0.8} Ne3 {+1.92/15 0.8} 43. Rf2
{-1.15/13 0.8} Bg4 {+1.91/15 0.8} 44. Rb2 {-2.40/13 1.7} Ke7 {+1.91/14 0.8}
45. Rb1 {-1.76/11 0.9} Kf8 {+1.91/14 0.8} 46. Rb2 {-1.12/12 0.8} Rh6
{+1.91/15 0.8} 47. Rf2 {-1.12/13 0.5} Ke7 {+1.91/16 0.8} 48. Rb2
{-2.38/13 0.7} Rh4 {+1.91/15 0.8} 49. Rb1 {-2.39/14 0.8} f5 {+2.77/15 0.7}
50. exf5 {-2.76/15 1.6} Nxf5 {+2.77/17 0.8} 51. Re1+ {-2.98/15 1.1} Kf6
{+2.80/17 0.7} 52. Rf1 {-2.68/14 0.6} Ke5 {+2.80/15 0.7} 53. Re1+
{-2.53/14 0.5} Kf4 {+2.80/17 0.7} 54. Rxg4+ {-3.09/13 0.5} Kxg4
{+2.80/18 0.7} 55. Re4+ {-3.13/15 0.5} Kg3 {+3.59/14 0.6} 56. Re6
{-3.81/15 0.8} Ne3 {+3.57/14 0.6} 57. Rg6 {-3.26/15 0.5} Rf4 {+3.57/16 0.6}
58. Rxg5+ {-4.52/21 0.4} Kh4 {+3.57/17 0.7} 59. g3+ {-4.68/22 0.4} Kxg5
{+5.92/22 0.6} 60. gxf4+ {-4.62/23 0.5} Kxf4 {+5.94/26 0.6} 61. Kf2
{-5.93/17 0.7} Nc2 {+5.94/27 0.6} 62. Ke2 {-6.15/17 0.6} Nxb4
{+5.94/20 0.5} 63. Kd2 {-12.47/16 1.0} Kg3 {+5.94/21 0.6} 64. Ke2
{-12.45/16 0.5} Kg4 {+5.94/23 0.5} 65. Kd2 {-13.11/17 0.5} Kg5
{+5.94/25 0.5} 66. Ke2 {-12.43/16 0.8} Nxd3 {+0.82/24 0.6} 67. Kxd3
{-2.21/22 0.5} Kg4 {+0.82/32 0.6} 68. Ke4 {-2.67/23 0.4} Kg5 {+0.82/26 0.5}
69. Kd3 {-0.01/26 0.4} Kg4 {+0.00/33 0.5} 70. Ke4 {-0.01/28 0.2} Kg5
{+0.00/27 0.5} 71. Kd3 {-0.01/28 0.7}
{XBoard adjudication: repetition draw} 1/2-1/2
[/pgn]

Why Nxd3 ? What à question lol
Well ... it is not reproducible ... then it's surely an update bug or an hashtable bug or eval, search , move generator bug who know ?

[Sven]

Not reproducible (of course)

Did you save the winboard.debug file for that game? Then you could see Skipper's analysis.

In the given position, 66...Nxd3 is not bad, from human viewpoint at least. It simplifies the position and leads to a won pawn ending and mate in 21. With a better move, e.g. 66...Kf5, it would be mate in 11. Of course you'd expect from an engine to play the move that has a shorter path to mate. The really bad moves are the following ones: Kg4, Kg5, Kg4 etc. instead of Kf5, Kf4 and approaching the Pc5. So apart from some "unknown" problem that leads to sacrificing the knight I think that the main problem showing up in this game is the inability to detect a threefold repetition - as you already stated.

[Henk]

Already solved the three fold repetition bug. The check whether position was already played was not performed at level 0. Strangely looks like after repair Skipper plays worse for instead of drawing it loses. Perhaps because check is not that cheap.

[Henk]

I am glad it's fixed now:

[pgn]
[Event "Computer Chess Game"]
[Site "HP"]
[Date "2016.01.26"]
[Round "-"]
[White "Fairy-Max 4.8S"]
[Black "SkipperWinb"]
[Result "1/2-1/2"]
[TimeControl "120"]
[Annotator "1. +0.13 1... +0.00"]

1. d3 {+0.13/8} h6 {+0.00/15 2.5} 2. h4 {+0.06/8 4} Nf6 {+0.01/15 2.4} 3.
Be3 {+0.02/8 4} a6 {+0.00/13 2.4} 4. c4 {-0.02/8 1.4} Nc6 {+0.01/13 2.3} 5.
Nc3 {+0.00/9 3} Ng4 {+0.00/14 2.3} 6. Bd2 {-0.14/9 2.2} d6 {+0.00/14 2.2}
7. Nf3 {+0.00/8 3} a5 {+0.00/13 2.2} 8. Qb3 {-0.03/8 2.2} g6 {+0.00/12 2.1}
9. g3 {+0.07/7 1.7} Bg7 {+0.01/11 2.1} 10. Bh3 {+0.00/7 1.5} Nf6
{+0.00/12 2.0} 11. O-O-O {-0.04/8 3} Bxh3 {+0.00/13 2.0} 12. Rxh3
{-0.26/9 3} Qc8 {+0.00/12 2.0} 13. Rh2 {-0.27/8 1.1} h5 {+0.00/12 1.9} 14.
Nd5 {-0.26/9 2.0} Ng4 {+0.02/12 1.9} 15. Rg2 {-0.30/9 2.5} e6
{+0.02/11 1.8} 16. Qa4 {-0.30/8 2.7} Qb8 {+0.02/11 1.8} 17. Nc3
{-0.30/8 1.1} O-O {+0.00/10 1.8} 18. Ne4 {-0.01/8 1.1} f5 {+0.00/11 1.7}
19. Neg5 {-0.09/9 2.8} Qc8 {+0.00/12 1.7} 20. Bc3 {-0.06/8 1.3} Bxc3
{+0.00/13 1.7} 21. bxc3 {-0.02/10 1.8} e5 {+0.00/13 2.1} 22. Qb3
{-0.01/10 1.8} a4 {+0.00/13 2.0} 23. Qa3 {-0.01/10 1.3} Qd7 {+0.00/11 1.9}
24. Rd2 {-0.01/8 1.2} e4 {+0.00/12 1.9} 25. dxe4 {-0.07/10 1.6} fxe4
{+0.02/13 1.9} 26. Nxe4 {+0.00/10 1.3} Qe6 {+0.00/13 1.8} 27. Nfg5
{-0.06/10 1.5} Qxc4 {+0.00/12 1.7} 28. Kb1 {-0.37/9 4} Rae8 {+0.00/9 1.7}
29. Kc1 {-0.65/9 4} Rxe4 {+1.72/12 1.7} 30. Nxe4 {-0.79/10 0.9} Qxe4
{+1.70/14 1.7} 31. f3 {-0.93/10 1.4} Qe5 {+1.70/12 1.6} 32. Rd3
{-0.79/10 1.7} Ne3 {+1.71/12 1.5} 33. f4 {-0.80/10 1.8} Qe4 {+1.70/12 1.5}
34. Rg1 {-0.85/9 0.9} b6 {+1.70/12 1.5} 35. Qb2 {-1.28/9 0.8} Kf7
{+1.70/12 1.4} 36. a3 {-0.81/8 0.7} Re8 {+1.70/11 1.4} 37. Qb1
{-1.11/7 0.6} Qe6 {+1.70/11 1.3} 38. Qb2 {-1.57/9 1.5} Na5 {+2.47/11 1.3}
39. Kb1 {-2.27/9 0.7} Nec4 {+3.56/11 1.3} 40. f5 {-2.52/9 0.8} gxf5
{+4.38/11 1.3} 41. Qa2 {-3.54/10 0.7} Qxe2 {+6.43/13 0.8} 42. Qxe2
{-6.18/12 0.8} Rxe2 {+7.17/12 0.8} 43. Kc1 {-6.96/11 1.1} Ra2
{+7.17/11 0.8} 44. Rf3 {-7.03/11 0.9} Ra1+ {+7.20/12 0.8} 45. Kc2
{-7.35/11 0.7} Rxg1 {+7.21/12 0.8} 46. Rxf5+ {-7.28/11 0.7} Kg6
{+7.22/12 0.8} 47. Rg5+ {-7.33/11 1.1} Kh6 {+7.22/11 0.8} 48. Kd3
{-7.61/11 1.6} Ne5+ {+7.22/11 0.7} 49. Ke4 {-7.73/9 0.9} Rc1 {+7.99/11 0.7}
50. Rg8 {-7.22/10 0.6} Rxc3 {+8.00/11 0.7} 51. Rh8+ {-7.51/10 0.5} Kg6
{+8.00/10 0.7} 52. Rg8+ {-7.44/9 0.5} Kh6 {+8.00/11 0.7} 53. Rh8+
{-0.01/21 0.5} Kg7 {+7.98/12 0.7} 54. Rxh5 {-7.97/10 0.5} Rxg3
{+8.00/12 0.7} 55. Rf5 {-8.09/10 0.5} Rxa3 {+8.00/10 0.6} 56. Rg5+
{-8.50/10 1.4} Kh6 {+8.78/10 0.6} 57. Rf5 {-8.83/10 0.4} Rh3 {+8.80/10 0.6}
58. Rf4 {-9.08/9 0.4} Kh5 {+8.80/12 0.6} 59. Rf5+ {-8.81/10 0.5} Kxh4
{+8.81/11 0.6} 60. Rf4+ {-8.84/9 0.6} Kg3 {+8.81/9 0.6} 61. Rf1
{-9.04/9 0.5} Nb3 {+8.82/10 0.6} 62. Kd5 {-9.40/8 0.5} Rh4 {+8.81/10 0.6}
63. Rg1+ {-8.98/10 0.5} Kf2 {+8.81/10 0.6} 64. Rb1 {-9.49/10 0.5} Nc5
{+8.81/10 0.6} 65. Rf1+ {-8.09/9 0.3} Kg2 {+8.80/11 0.5} 66. Rg1+
{-8.07/11 0.5} Kf3 {+8.81/10 0.5} 67. Rf1+ {-9.00/11 1.8} Kg4 {+8.81/9 0.5}
68. Rg1+ {-9.49/11 1.5} Kf3 {+0.00/11 0.5} 69. Rf1+ {-0.01/24 0.4} Kg3
{+8.81/11 0.5} 70. Rg1+ {-8.39/10 0.4} Kf2 {+8.80/11 0.5} 71. Rf1+
{-0.01/24 0.3} Ke3 {+8.85/12 0.5} 72. Re1+ {-8.39/10 0.3} Kd3
{+8.85/12 0.5} 73. Re3+ {-7.88/10 0.3} Kd2 {+9.08/11 0.5} 74. Re2+
{-8.70/10 0.3} Kc3 {+9.08/12 0.5} 75. Rc2+ {-8.99/10 0.3} Kd3
{+9.91/14 0.5} 76. Rc3+ {-8.12/12 0.9} Kd2 {+9.08/12 0.5} 77. Rc2+
{-8.17/12 1.3} Kd3 {+0.00/15 0.5} 78. Rc3+ {-0.01/22 0.5} Kd2
{+0.00/13 0.5} 79. Rc2+ {-0.01/23 0.3} Kd3 {+0.00/16 0.4}
{XBoard adjudication: repetition draw} 1/2-1/2
[/pgn]

[Sven]

I am glad it's fixed now:

Fixed? Are you sure? But in this game black was two knights and various pawns ahead, and there were several positions where a mate-in-11,...,15 was possible. Instead black did not avoid the repetition although that was easily possible (e.g. 79...Ke3 80.Re2+ Kf3 81.Rf2+ Kg4 and the king walks to g7). According to the PGN Skipper reached relatively high depths but stumbled directly into the draw. Is that "fixed"?

[Henk]

Of course I was joking.

[Sven]

Of course I was joking.

Ok, so you were testing how many people would replay the game

[Henk]

In this position Skipper played Bf3 ?? Why not try Kf4 ?

[d] 8/8/5p2/pR1pk1p1/P2b2P1/5P2/4K1b1/8 b - - 6 48