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Subject: Tactical position

Author: Normand M. Blais

Date: 11:55:29 08/27/05


Hi,

Two versions of my program playing against each other produce the game below.
The final position made me wonder. Why is Black resigning? The obvious answer is
because I instructed the program to resign when the score is lower than a 1000
points (value of the Queen). In fact, it is mate in 9 moves.

N.B.

My computer: Penthium 4 (3.0 GHz)
O.S.: Windows 2000 Pro
Ram: 512 Meg

[Event "Computer chess game"]
[Site "NORMAND"]
[Date "2005.08.27"]
[Round "5"]
[White "Alex 1.67.01g"]
[Black "Alex 1.67.00"]
[Result "1-0"]
[TimeControl "40/300"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Be7 8.
f4 Qc7 9. Kh1 O-O 10. a4 Nc6 11. Be3 Re8 12. Bf3 Rb8 13. Qd2 Bd7 14. Nb3 b6
15. Rad1 Red8 16. Qe2 Bc8 17. Nd2 d5 18. exd5 Nxd5 19. Bxd5 exd5 20. f5 Qa7
21. Nb3 Bf6 22. Rxd5 Rf8 23. a5 Qe7 24. axb6 Bxc3 25. bxc3 Re8 26. Rf3 Rxb6
27. f6 Qe4 28. Qd2 Bg4 29. Bxb6 Bxf3 30. Rg5 g6 31. gxf3 Qxf3+ 32. Rg2 Qxf6
33. Rf2 Qe5 34. Nc5 Nb8 35. c4 f5 36. Qd5+ Kg7 37. Nd3 Qe7 38. Bd4+ Kh6 39.
Ne5 Rf8 40. Bc5 Qe8 41. Qb7 Rf6 42. Be3+ f4 43. Ng4+ Kg5 44. Qd5+ Kh4 45.
Rf3
{Black resigns} 1-0

[D]1n2q3/7p/p4rp1/3Q4/2P2pNk/4BR2/2P4P/7K b - - 5 45




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