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Subject: interesting computer loss

Author: Jon Dart

Date: 21:15:26 01/23/01


This was played on ICC recently:

[Event "?"]
[Site "chessclub.com"]
[Date "2001.01.23"]
[Round "?"]
[White "BxN"]
[Black "Arasan 6.0"]
[Result "1-0"]
[ECO "B26"]
[WhiteElo "2293"]
[BlackElo "2635"]
[TimeControl "300+8"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 e6 7. Qd2
Nge7 8. Bh6 Bxh6 9. Qxh6 Nd4 10. O-O-O Nec6 11. Nce2 Nxe2+ 12. Nxe2
e5 13. Kb1 Qf6 14. f4 Bg4 15. Nc3 Bxd1 16. Rxd1 Ne7 17. Rf1 Ng8
18. Qh3 Qe6 19. f5 gxf5 20. Nd5 O-O-O 21. exf5 Qh6 22. f6+ Qxh3
23. Bxh3+ Kb8 24. g4 h6 25. Bg2 Re8 26. Be4 b5 27. h4 Kc8 28. c4 a6
29. Kc2 Kd8 30. Rf2 Rf8 31. Kb3 Kd7 32. a4 bxc4+ 33. dxc4 Rb8+
34. Kc3 Ke8 35. a5 Rb7 36. b4 cxb4+ 37. Nxb4 Rc7 38. Nd5 Rb7 39. Rf1
Kf8 40. Bf5 Ke8 41. Bc8 Rb8 42. Bxa6 Kd8 43. Bb5 Rb7 44. a6 Ra7
45. Kb4 h5 46. g5 Kc8 47. Ka5 Kb8 48. Kb6 Ka8 49. Bc6+ Kb8
 1-0 {ArasanX resigns}


I don't know anything about player "BxN", except that he (she?)
seems to play computers almost exclusively, loses a lot, but wins
enough to have a 2300 or so rating. So, master level if it's
really an unaided human (I have no evidence it's not).

Anyway, 41. Bc8! was a nice move. This is the position:

[D] 4k1nr/1r3p2/p2p1P1p/P2NpB2/2P3PP/2K5/8/5R2 w - -

Also note the sad state of Black's knight on g8 and rook on h8.
Effectively, Black is playing 2 pieces down. I've got some
Knight and Rook mobility scoring, but it won't detect when
someone is totally tied up like this. I've seen masters
do this sort of things to comps more than once.





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