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Subject: Re: Is Crafty correct to claim this a draw? (50 move rule)

Author: maria clara benedicto

Date: 23:06:39 05/24/02

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hi ferdie,

the way i understand it, no it can not be a draw.

the rule says if no mate or whatever by the 50th move = draw/

u say crafty is mated on the 50th move.

just some thoughts....

thanks, salamat po,

maria


On May 24, 2002 at 19:15:31, Ferdinand S. Mosca wrote:

>
>A setup game between the new Crafty and EngineX. Crafty is mated on the 50th
>move (after last capture of EngineX) of EngineX. Played under winboard, the game
>result was a draw. Is this really a Draw?
>
>Note:
>1. Under CB GUI Crafty plays Bg8 in analysis mode.
>2. Under WB GUI Crafty plays other than Bg8 in analysis mode.
>3. Other Engines I have tried do not play Bg8, like Yace, LambChop, Shredder.
>4. There is one WB engine that I have tried also plays Bg8.
>
>White to play: Crafty played, 132. Bg8?? (132. Bb7 draws, see game score below)
>and was mated in one.
>[D]K7/2rn4/8/2bB2k1/8/8/8/5R2 w - - 0 132
>
>[Event "Computer chess game"]
>[Site "DINAN"]
>[Date "2002.05.25"]
>[Round "2"]
>[White "Crafty-18.15"]
>[Black "EngineX"]
>[Result "1/2-1/2"]
>
>1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5 6. exf5 Bxf5 7. d4 e4 8. Ng5
>d5 9. f3 h6 10. fxe4 hxg5 11. exf5 Bd6 12. Nd2 Qe7+ 13. Qe2 O-O-O 14. Nf1 Re8
>15. Qxe7 Rxe7+ 16. Kf2 Nf6 17. g3 Rhe8 18. Ne3 b5 19. Bd1 Na5 20. Bf3 c6 21. b4
>Nb7 22. a4 Bb8 23. axb5 axb5 24. Ra6 Kc7 25. c4 bxc4 26. Nxc4 dxc4 27. Rxc6+
>Kd7 28. Rxc4 Nd6 29. Bc6+ Kd8 30. Rc2 Rh8 31. Kg2 Nxf5 32. Bxg5 Ne3+ 33. Bxe3
>Rxe3 34. Bb7 Kd7 35. Rhc1 Ke7 36. Bc8 Ne4 37. Bb7 Nd6 38. Bf3 Nf5 39. Rc8 Rxc8
>40. Rxc8 Bd6 41. d5 Rb3 42. Ra8 Rxb4 43. Ra7+ Kf6 44. Rd7 g5 45. Kh3 Ke5 46.
>Rd8 Be7 47. Re8 Kf6 48. Bg4 Nd6 49. Rg8 Ne4 50. Be6 Ke5 51. Re8 Kd6 52. Rc8 Nf6
>53. Rc6+ Ke5 54. Rc7 Bd6 55. Rg7 Ne4 56. Kg4 Rb2 57. Bf5 Nf6+ 58. Kxg5 Rxh2 59.
>g4 Bc5 60. Kg6 Nxd5 61. Rf7 Be3 62. Bc8 Rh8 63. Bb7 Nf4+ 64. Kg7 Rb8 65. Rf5+
>Kd4 66. Bf3 Rb6 67. Kf7 Nh3 68. Rd5+ Kc4 69. Rf5 Ng5+ 70. Ke8 Rd6 71. Ke7 Re6+
>72. Kd7 Rh6 73. Bc6 Rh4 74. Bf3 Rh3 75. Be2+ Kd4 76. Ke7 Ke4 77. Kf6 Rh2 78.
>Bc4 Rh6+ 79. Ke7 Bf4 80. Bd5+ Ke3 81. Kd7 Rh4 82. Bc4 Rxg4 83. Bd5 Kd4 84. Be6
>Rh4 85. Bd5 Rh7+ 86. Ke8 Ke3 87. Rf6 Be5 88. Rf5 Bf4 89. Rf6 Be5 90. Rf5 Rh8+
>91. Ke7 Bf4 92. Kd7 Rh7+ 93. Kc6 Rh2 94. Rf8 Rf2 95. Kb5 Kd4 96. Rd8 Rb2+ 97.
>Kc6 Rc2+ 98. Kb7 Ke5 99. Bg8 Be3 100. Re8+ Kd4 101. Rd8+ Ke4 102. Re8+ Kd3 103.
>Rd8+ Ke4 104. Re8+ Kd3 105. Rd8+ Bd4 106. Rd6 Rc3 107. Ba2 Nf3 108. Rc6 Bc5
>109. Bd5 Nd4 110. Ra6 Be7 111. Rg6 Rc5 112. Rg3+ Ke2 113. Be4 Bd8 114. Bd3+ Kd2
>115. Be4 Rc7+ 116. Ka6 Rc4 117. Kb7 Ne6 118. Bd5 Rc7+ 119. Kb8 Nc5 120. Rg2+
>Ke3 121. Rg6 Nd7+ 122. Ka8 Bf6 123. Bb7 Kf4 124. Rg1 Bd4 125. Rf1+ Kg5 126. Rd1
>Bc5 127. Rc1 Kf6 128. Rf1+ Kg7 129. Re1 Kf7 130. Bd5+ Kf6 131. Rf1+ Kg5 132.
>Bg8 Ra7# 1/2-1/2
>
>Regards,
>Dinan



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