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Subject: IsiChess - Deep Junior

Author: Andreas Guettinger

Date: 08:19:27 08/20/05


[Event "World Computer Chess Championship"]
[Site "?"]
[Date "2005.08.20"]
[Round "?"]
[White "IsiChess(C)"]
[Black "Junior(C)_0-1"]
[Result "0-1"]
[Opening "Queen's pawn game"]
[ECO "D04"]
[NIC "QP.08"]
[Time "06:05:23"]

1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 4. Bd3 e6 5. O-O Bd6 6. Nc3 c6 7. Qe2 Nbd7 8.
e4 dxe4 9. Nxe4 Bxe4 10. Bxe4 Qa5 11. Bd2 Qh5 12. Bd3 O-O 13. Rfe1 c5 14. c3
cxd4 15. cxd4 Rac8 16. a3 Rfd8 17. g3 Nb6 18. Rac1 Rxc1 19. Rxc1 h6 20. Kg2
Qd5 21. Kf1 a6 22. Kg1 Kh8 23. Rc2 Nbd7 24. Bc4 Qf5 25. Rc1 Qg4 26. Kg2 Nb6
27. h3 Qh5 28. Bb3 Nbd7 29. Qd3 Nf8 30. g4 Qg6 31. Qe3 Kg8 32. Bc2 Nd5 33.
Qb3 Qf6 34. Qxb7 Bf4 35. Rd1 Rb8 36. Qxa6 Rxb2 37. Qc4 Qe7 38. a4 Qb7 39.
Be4 Ng6 40. Kg1 Bxd2 41. Rxd2 Rb4 42. Qc2 Ngf4 43. a5 Rb5 44. Qa4 Qb8 45.
Bxd5 Nxh3+ 46. Kf1 exd5 47. Ne1 Rb1 48. Qd7 Qf4 49. Qf5 Qxf5 50. gxf5 Nf4
51. f3 Ra1 52. Kf2 Rxa5 53. Nd3 Nxd3+ 54. Rxd3 Ra6 55. Kg3 Rf6 56. Kg4 Rb6
57. Kf4 f6 58. Ra3 Rb4 59. Ke3 h5 60. Ra5 h4 61. Rxd5 Rb2 62. Rd8+ Kh7 63.
Rc8 h3 64. Rc1 h2 65. Rh1 Kg8 66. Ke4 Kf7 67. f4 Ke7 68. Kf3 Kd6 69. Ke4 Ra2
70. Rf1 Ra3 71. Rh1 Rh3 72. d5 Rh4 73. Ke3 Kxd5 74. Rd1+ Kc4 75. Rc1+ Kb5
76. Rh1 Rh3+ 77. Kf2 Kc4 78. Kg2 Rh8 79. Kf3 Kd3 80. Rd1+ Kc2 81. Rh1 Rh6
82. Kg3 Kd3 83. Kf3 Rh4 84. Rd1+ Kc4 85. Rc1+ Kb3 86. Rh1 Rh3+ 87. Kg2 Rh8
88. Rxh2 Rxh2+ 89. Kxh2 Kc4 {Black wins} 0-1

Why did IsiChess play 88. Rxh2?
Can black win after 88. Kf3 and how?

[D] 7r/6p1/5p2/5P2/5P2/1k6/6Kp/7R w - -

i.e. 88. Kf3 Kc2 89. Kg4 Kd3 90. Kf3 Rh3+ 91. Kg4 Rh8 92. Kf3 opposition

regards
Andy



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