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Subject: Re: Chess Tigers problem (Bug / Blunder)

Author: Kim Roper Jensen

Date: 15:54:28 12/19/04

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On December 19, 2004 at 18:48:42, James T. Walker wrote:

>Here is a game played by CT 15.  At first I could not understand the move 97.
>Bxa3.  It appears the only reason for this move is to avoid the 50 move rule
>since any other move results in a draw.  Also note that Chess Tiger 2004 plays
>the same move.
>
>[Event "G/5min"]
>[Site "?"]
>[Date "2004.12.19"]
>[Round "2"]
>[White "Chess Tiger 15"]
>[Black "Hiarcs 9"]
>[Result "0-1"]
>[ECO "E19"]
>[PlyCount "231"]
>[EventDate "2004.??.??"]
>
>1. c4 Nf6 2. Nf3 b6 3. g3 e6 4. Bg2 Bb7 5. d4 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2
>Nxc3 9. Qxc3 c5 10. Rd1 d6 11. b3 Bf6 12. Bb2 Qe7 13. Qc2 Nc6 14. e4 e5 15. d5
>Nd4 16. Qd3 Rae8 17. Rd2 Qc7 18. Re1 Bc8 19. Nxd4 exd4 20. f3 Bd7 21. Bc1 a6
>22. Qc2 b5 23. Bf1 h5 24. Rf2 b4 25. Bf4 Be5 26. Bg5 f5 27. f4 d3 28. Bxd3 Bd4
>29. Kg2 Bxf2 30. Kxf2 fxe4 31. Bxe4 Kh8 32. Qb1 Bg4 33. Bg6 Rxe1 34. Qxe1 Qd7
>35. Qe7 Rb8 36. Qxd7 Bxd7 37. Bxh5 Rb7 38. g4 Kg8 39. h4 Kf8 40. f5 a5 41. Bg6
>Be8 42. Bf4 Rd7 43. g5 Bxg6 44. fxg6 a4 45. h5 a3 46. h6 Ke7 47. h7 Rd8 48. Ke3
>Rf8 49. Kd3 Ra8 50. Ke4 Re8 51. Be3 Rf8 52. Kd3 Rh8 53. Ke2 Rf8 54. Bf2 Rh8 55.
>Ke3 Kd7 56. Bg3 Rd8 57. Kf4 Rf8+ 58. Kg4 Ke7 59. Bh2 Rh8 60. Kf3 Rf8+ 61. Ke3
>Rh8 62. Bg3 Kd7 63. Kf3 Rf8+ 64. Bf4 Re8 65. Kf2 Rf8 66. Ke2 Ke7 67. Bg3 Rh8
>68. Kd3 Re8 69. Ke3 Kd7+ 70. Kd2 Rf8 71. Kd3 Rh8 72. Bh2 Ke7 73. Ke4 Kd7 74.
>Kf3 Ke7 75. Bf4 Rf8 76. Ke2 Rh8 77. Kf1 Rf8 78. Kg2 Rh8 79. Kg3 Kd7 80. Kg4 Ke7
>81. Bh2 Ra8 82. Kf5 Rf8+ 83. Ke4 Kd7 84. Bf4 Re8+ 85. Kd3 Ke7 86. Kd2 Rh8 87.
>Bg3 Rf8 88. Be1 Rh8 89. Ke3 Kd7 90. Kf4 Kd8 91. Kf5 Kd7 92. Bf2 Rf8+ 93. Kg4
>Ke7 94. Be3 Rh8 95. Kg3 Rf8 96. Bc1 Rb8 97. Bxa3 bxa3 98. Kf4 Kd7 99. Kf3 Re8
>100. Kf2 Kc7 101. Kf3 Kb6 102. Kf4 Ka5 103. Kg4 Kb4 104. Kf4 Kc3 105. Kf5 Kb2
>106. h8=Q Rxh8 107. Ke6 Kxa2 108. Kf7 Kxb3 109. Kxg7 Ra8 110. Kh7 a2 111. g7
>a1=Q 112. g8=Q Rxg8 113. Kxg8 Qe5 114. g6 Kxc4 115. Kf8 Qf6+ 116. Kg8 0-1
>
>Position before 97. Bxa3
>[D]1r6/4k1pP/3p2P1/2pP2P1/1pP5/pP4K1/P7/2B5 w - - 99 1

This is Chesstiger 2004 on AMD3500+ 384MB hashtable normal, so maybe not enough
time ??

00:00:00.0	0,01	1	29	Kf4
00:00:00.0	0,94	1	51	Bxa3 bxa3 Kf4
00:00:00.0	0,94	2	84	Bxa3 bxa3 Kf4
00:00:00.0	0,94	3	105	Bxa3 bxa3 Kf4
00:00:00.0	0,74	4	377	Bxa3 bxa3 Kf4 Rh8 Ke4
00:00:00.0	0,74	5	627	Bxa3 bxa3 Kf4 Rh8 Ke4
00:00:00.0	0,16	6	1564	Bxa3 bxa3 Kf4 Rh8 Kf5 Kf8 Ke6
00:00:00.0	0,16	7	2337	Bxa3 bxa3 Kf4 Rh8 Kf5 Kf8 Ke6
00:00:00.0	0,72	8	4178	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3
00:00:00.0	0,72	9	6867	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3 Kf8
00:00:00.0	0,20	10	13677	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3 Kf8 Ke4 Ke7 Kd3
Kf8 Ke4
00:00:00.0	0,21	11	23386	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3 Kf8 Ke4 Ke7 Kd3
Kf8 Ke4
00:00:00.0	0,46	12	48358	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3 Kf8 Ke4 Ke7 Kd3
Kf8 Ke4
00:00:00.0	0,46	13	82639	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke7 Kd3 Kf8 Ke4 Ke7 Kd3
Kf8 Ke4
00:00:00.1	0,58	14	207975	Bxa3 bxa3 Kf4 Rh8 Ke3 Kf8 Ke4 Ke8 Kf5 Kd7 Ke4 Ke8 Kf5
Kd7 Ke4 Ke8
00:00:00.5	0,52	15	895072	Bxa3 bxa3 Kf4 Rh8 Kf3 Ke8 Ke4 Kd7 Kf3 Ke8 Ke4 Kd7 Kf3
Ke8
00:00:00.7	0,52	16	1282525	Bxa3 bxa3 Kf4 Rh8 Kf3 Ke8 Ke4 Kd7 Kd3 Ke7 Kc3 Rb8 Kc2
Rf8 Kd2 Rf2+ Ke3 Rh2 Kd3 Rh3+ Ke4 Kf8
00:00:01.2	0,38	17	2226163	Bxa3 bxa3 Kf4 Rh8 Kf3 Ke8 Ke4 Kd7 Kd3 Ke7 Kd2 Ke8 Kc3
Ke7 b4 cxb4+ Kxb4 Ke8 c5 dxc5+ Kxc5 Ke7 d6+ Ke6
00:00:04.4	0,32	18	8150222	Bxa3 bxa3 Kf4 Rf8+ Kg4 Kd7 Kh3 Rf3+ Kg2 Rf8
00:00:15.4	0,10	19	29369341	Bxa3 bxa3 Kf4 Rf8+ Ke3 Ke8 Kd3 Rf3+ Ke2 Rf8 Ke3 Kd7
Kd3 Rf3+ Ke2 Rh3 Kf2 Ke7 Kg2 Rh5 Kf3 Rh2 Kg3 Rh5 Kf3 Rh2 Kg3 Rh5 Kf3
00:00:18.5	0,10	20	34973407	Bxa3 bxa3 Kf4 Rf8+ Ke3 Ke8 Kd3 Rf3+ Ke2 Rf8 Ke3 Kd7
Kd3 Rf3+ Ke2 Rh3 Kf2 Ke7 Kg2 Rh5 Kf3 Rh2 Kg3 Rh5 Kf3 Rh2 Kg3 Rh5 Kf3
00:00:24.2	0,10	21	45594792	Bxa3 bxa3 Kf4 Rf8+ Ke3 Ke8 Kd3 Rf3+ Ke2 Rf8 Kd3 Rf3+
Ke2 Rf8 Kd3
00:01:04.5	0,01	22	118249753	Kf4
00:01:05.0	0,01	23	119437319	Kf4
00:01:11.3	0,01	24	131148980	Kf4
00:01:15.2	0,01	25	138493495	Kf4
00:01:21.1	0,01	26	146824654	Kf4
00:01:28.6	0,01	27	158477944	Kf4
00:01:49.0	0,01	28	190145063	Kf4




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