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Posers and Puzzles

Posers and Puzzles

  1. 11 Aug '07 15:50
    46 consecutive checks in a legal game:

    [Event "?"]
    [Site "?"]
    [Date "2007.08.11"]
    [Round "?"]
    [White "?"]
    [Black "?"]
    [Result "*"]
    [ECO "E32"]

    1. h4 g5
    2. a4 b5
    3. c4 d5
    4. cxd5 bxa4
    5. Ra3 gxh4
    6. g4 f6
    7. g5 h3
    8. g6 h2
    9. d4 a5
    10. Bg5 fxg5
    11. f4 g4
    12. Nh3 g3
    13. Nf2 g2
    14. g7 h5
    15. b4 Nh6
    16. g8=R g1=Q
    17. Kd2 Rh7
    18. Rh8 Kd7
    19. f5 Nc6
    20. Rg3 a3
    21. Nc3 a2
    22. d6 a4
    23. b5 Ra5
    24. b6 Re5
    25. b7 Na7
    26. b8=Q Kc6
    27. d7 Qe8
    28. d8=Q Qf7
    29. d5+ Kc5
    30. d6 Kd4
    31. d7 Bb7
    32. Qdc8 h4
    33. Bg2 Re3
    34. d8=Q+ Ke5
    35. f6 Rg7
    36. Be4 Rg4
    37. Bb1 Qh7
    38. f7 Bg7
    39. f8=Q a3
    40. Nfe4 a1=Q
    41. Kc2 h3
    42. Kb3 a2
    43. Kc4 Qb2
    44. Qfe8 Bc6
    45. Qa6 Kf5
    46. Kc5 Bd5
    47. Qb4 Bf7
    48. Qdb8 Bh5
    49. Qf1+ Qf2
    50. Qg2 a1=N
    51. Rd1 h1=Q
    52. Rd3 Qhc1
    53. Qba3 h2
    54. Qbb4 h1=Q
    55. Qba5 Qb8
    56. Q5b6 Qh4
    57. Qec6 Qfg1
    58. Rd4 Qgh1
    59. Nf2+ Rge4
    60. Kd5 Ng4
    61. Ra4 Qg6
    62. Ncd1 Bb2
    63. Qab4 Ba3
    64. Ra5 Rb3
    65. Nb2 Qh7
    66. Qf1 Qg6
    67. Nbd3 Qh7
    68. Rf8+ Bf7+
    69. Rxf7+ Qxf7+
    70. Qe6+ Rxe6+
    71. Rf3+ Qxf3+
    72. e4+ Rxe4+
    73. Qe6+ Rxe6+
    74. Qe4+ Rxe4+
    75. Qe6+ Rxe6+
    76. Kd4+ Nb5+
    77. Rxb5+ c5+
    78. Nxc5+ Re4+
    79. Ncxe4+ Bc5+
    80. Nxc5+ Qd3+
    81. Ncxd3+ Qe5+
    82. Nxe5+ Nc2+
    83. Bxc2+ Rd3+
    84. Nexd3+ Qd5+
    85. Rxd5+ e5+
    86. Rxe5+ Nxe5+
    87. Ng4+ Qf2+
    88. Qxf2+ Nf3+
    89. Qxf3+ Qf4+
    90. Qe4+ Qxe4+ *

    It is known that an infinite sequence of consecutive checks is impossible.
  2. 11 Aug '07 18:25
    Holy toledo that's a big leap forward. I think the previous record was a pathetic 37 moves.

    Here's the board before all the checking, may be easier to work from:

  3. 11 Aug '07 20:01 / 2 edits
    Thr previous record was 45. 37 is the record without promoted men in the position before the checking, and as far as I know is still the record in that case.

    http://www.xs4all.nl/~timkr/chess/check.html
  4. 11 Aug '07 20:26
    freaky! and quite amazing
  5. 13 Aug '07 09:06 / 1 edit
    Record broken again!
    http://www.xs4all.nl/~timkr/chess2/diary.htm