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Subject: Re: IsiChess - Deep Junior

Author: Gerd Isenberg

Date: 03:48:01 08/24/05

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On August 20, 2005 at 11:19:27, Andreas Guettinger wrote:

>[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?

Hi Andy,

good question. Most likely due to some icelandic troll ;-)
The chance of taking the h2 pawn was immanent and encouraged by Junior as well,
which king removes more and more. Isi got a huge fail low, but was "happy" to
play that move, without looking for an better one.

Not reproducable - unfortunately the accident or it's reason was not logged.
So with some respect the deserved punishment for my poor preparation.

>Can black win after 88. Kf3 and how?

No, it was a draw.

Gerd

>
>[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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