Eine Hypothese: Der Gegner war jeweils ebenfalls Houdini!
Oder eine ähnlich starke Engine. Houdini 1.5a, mit internen 2er-Settings, findet für diese zwei Partien auf Tiefe 18
nur je zwei Abweichungen >0,15 BE., und nur je eine für jede Seite:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[PlyCount "93"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O {0.08/18} d6 {0.13/18} 6. Re1 {
0.06/18} b5 {0.06/18} 7. Bb3 {0.06/18} Be7 8. c3 {0.00/18} Na5 {0.03/18} 9. Bc2
{0.06/18} c5 {0.06/18} 10. h3 {0.03/18} O-O 11. d4 cxd4 12. cxd4 Bb7 {0.10/18}
13. Nbd2 {0.09/18} Rc8 {0.18/18} 14. d5 {0.18/18 last book move} Nh5 {0.27/18}
15. Nf1 {0.27/18} Nc4 {0.24/18} 16. b3 {0.24/18} Nb6 {0.24/18} 17. Ne3 {0.18/18
} g6 {0.22/18} 18. Bd2 {0.22/18} Nf4 {0.22/18} 19. Ba5 {0.18/18} Qc7 {0.21/18}
20. Rc1 {0.22/18} Bd8 {0.22/18} 21. Qd2 {0.22/18} Qe7 {0.20/18} 22. Bb4 {0.17/
18} Nd7 {0.16/18} 23. g3 {0.16/18} Nh5 {0.16/18} 24. a4 {0.15/18} Nc5 {0.12/18}
25. Bxc5 {0.07/18} Rxc5 {0.07/18} 26. b4 {0.04/18} Rc7 {0.04/18} 27. Ng4 {0.05/
18} Nf6 {0.04/18} 28. Nh6+ {0.05/18} Kg7 {0.04/18} 29. axb5 {0.00/18} axb5 {0.
00/18} 30. Bd3 {0.00/18} Rxc1 {0.18/18}
({Houdini 1.5a x64-2d:} 30... Bc8 {0.
00/18}) 31. Rxc1 {0.17/18} Qd7 {0.19/18} 32. g4 {0.01/18}
({Houdini 1.5a
x64-2d:} 32. Ng5 {0.19/18}) 32... Be7 {0.10/18} 33. Ng5 {0.10/18} Bd8 {0.10/18}
34. Rc2 {0.02/18} Qe7 {0.02/18} 35. Ngxf7 {0.00/18} Rxf7 {0.00/18} 36. Nxf7 {
0.00/18} Qxf7 {0.00/18} 37. Qe3 {0.00/18} Qd7 {0.00/18} 38. Qe2 {0.00/18} Qf7 {
0.00/18} 39. Bxb5 {0.00/18} Nxd5 {0.00/18} 40. exd5 {0.00/18} Qxd5 {0.00/18}
41. f3 {0.00/18} e4 {0.00/18} 42. fxe4 {0.00/18} Qe5 {0.00/18} 43. Rc4 {0.00/18
} Qg3+ {0.00/18} 44. Qg2 {0.00/18} Qe5 {0.00/18} 45. Qe2 {0.00/18} Qg3+ {0.00/
18} 46. Qg2 {0.00/18} Qe5 {0.00/18} 47. Qe2 {0.00/18} *
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[PlyCount "125"]
1. e4 d5 2. exd5 Nf6 3. d4 Bg4 {0.37/18 last book move} 4. Bb5+ {0.40/18} Nbd7
{0.40/18} 5. Be2 {0.40/18} Bxe2 {0.39/18} 6. Qxe2 {0.38/18} Nxd5 {0.38/18} 7.
Nf3 {0.38/18} e6 {0.38/18} 8. O-O {0.37/18} N5f6 {0.37/18} 9. c4 {0.37/18} Bd6
{0.37/18} 10. Nc3 {0.37/18} O-O {0.37/18} 11. c5 {0.37/18} Be7 {0.37/18} 12.
Bf4 {0.36/18} c6 {0.37/18} 13. Rfd1 {0.31/18} Re8 {0.32/18} 14. Rac1 {0.31/18}
Nf8 {0.35/18} 15. Ne5 {0.39/18} Ng6 {0.39/18} 16. Bg3 {0.38/18} Nd5 {0.41/18}
17. Ne4 {0.40/18} f5 {0.45/18} 18. Nxg6 {0.44/18} hxg6 {0.43/18} 19. Nd6 {0.43/
18} Bxd6 {0.43/18} 20. Bxd6 {0.42/18} Qh4 {0.43/18} 21. Rc4 {0.43/18} Qh5 {0.
43/18} 22. Qd2 {0.43/18} Rad8 {0.43/18} 23. Ra4 {0.43/18} a6 {0.43/18} 24. Re1
{0.43/18} g5 {0.43/18} 25. Ra3 {0.43/18} Rd7 {0.43/18} 26. Rg3 {0.43/18} f4 {
0.43/18} 27. Rb3 {0.43/18} Qh6 {0.43/18} 28. Rh3 {0.43/18} Qg6 {0.43/18} 29.
Qe2 {0.43/18} Rdd8 {0.44/18} 30. Rd3 {0.43/18} Kf7 {0.43/18} 31. Rb3 {0.43/18}
Rd7 {0.43/18} 32. Rh3 {0.43/18} Kg8 {0.43/18} 33. Qh5 {0.43/18} Kf7 {0.43/18}
34. Qe2 {0.43/18} Kg8 {0.43/18} 35. Qh5 {0.42/18} Kf7 {0.42/18} 36. Qg4 {0.42/
18} Rdd8 {0.65/18}
({Houdini 1.5a x64-2d:} 36... Nf6 {0.42/18}) 37. Rb3 {0.65/
18} b5 {0.65/18} 38. Ra3 {0.65/18} Ra8 {0.65/18} 39. h3 {0.64/18} Nf6 {0.65/18}
40. Qf3 {0.65/18} Nd5 {0.65/18} 41. Re5 {0.65/18} Rh8 {0.65/18} 42. Qg4 {0.65/
18} Rh4 {0.65/18} 43. Qxg5 {0.66/18} Qxg5 {0.60/18} 44. Rxg5 {0.56/18} Kf6 {0.
56/18} 45. Re5 {0.55/18} g5 {0.55/18} 46. Rd3 {0.55/18} Rg8 {0.55/18} 47. Re4 {
0.56/18} Kf5 {0.56/18} 48. Re1 {0.54/18} a5 {0.54/18} 49. g4+ {0.53/18} Kf6 {
0.53/18} 50. a4 {0.53/18} b4 {0.53/18} 51. Kg2 {0.53/18} Rg6 {0.53/18} 52. Be5+
{0.53/18} Kf7 {0.53/18} 53. Rb3 {0.53/18} Rgh6 {0.53/18} 54. Rf3 {0.53/18} Rh7
{0.54/18} 55. Bd6 {0.53/18} Kf6 {0.53/18} 56. Rd3 {0.53/18} R4h6 {0.54/18} 57.
Be5+ {0.54/18} Kf7 {0.54/18} 58. Rf3 {0.53/18} Kg6 {0.54/18} 59. Bd6 {0.54/18}
Kf6 {0.54/18} 60. Be5+ {0.54/18} Kg6 {0.54/18} 61. Rd3 {0.54/18} Kf7 {0.54/18}
62. Rf3 {0.00/18}
({Houdini 1.5a x64-2d:} 62. Re4 {0.54/18}) 62... Kg6 {0.54/18
} 63. Bb8 {0.53/18} *
Es kann schon mal vorkommen daß Houdini gegen Houdini gewinnt, besonders wenn der Sieger auf schnellerer Hardware läuft.