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Subject: Re: Couple of interesting positions

Author: Howard Exner

Date: 18:38:28 02/12/00

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On February 12, 2000 at 10:45:17, Jon Dart wrote:

>Here are a couple of positions from recent games by Arasan on ICC:
>
>[D] 1k4r1/ppq2p2/2p1p1r1/2QP1p2/7p/2P2P1n/PPR3P1/4RB1K b - - bm Ng5; id
>"arasan.139"
>
>In the first one, Arasan played Qg3 and lost after .. dxc6. It appears
>that Ng5 keeps a winning advantage.

I like these positions where the initial move looks good (Qg3) but then fails
having the program scramble for a better move. Rebel Century 1.2 would also have
played Qg3 in blitz on my machine as it takes 0:40 to change moves, this on a
K6-233.

>
>This is the whole game, which was pretty interesting, with
>opposite-wing attacks:
>
>[Event "?"]
>[Site "?"]
>[Date "2000.02.02"]
>[Round "?"]
>[White "MissSilicon"]
>[Black "Arasan 5.4"]
>[Result "1-0"]
>[ECO "B16"]
>[WhiteElo "2505"]
>[BlackElo "2463"]
>[TimeControl "600+3"]
>
>1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6 6. c3 Bf5
>7. Ne2 h5 8. Ng3 Bg4 9. f3 Be6 10. Bd3 Nd7 11. O-O h4 12. Nf5 Qc7
>13. Kh1 Bxf5 14. Bxf5 e6 15. Bc2 Bd6 16. h3 O-O-O 17. Bd3 Rhg8
>18. Re1 Rg3 19. Re2 f5 20. Bd2 Rg6 21. Be1 Bg3 22. Qa4 Bxe1 23. Raxe1
>Kb8 24. Qb4 Nf6 25. Bc4 Nh5 26. Rc2 Rdg8 27. Bf1 Nf4 28. Qc5 Nxh3
>29. d5 Qg3 30. dxc6 Qxe1 31. Qb5 Qxf1+ 32. Qxf1 bxc6 33. gxh3 Rg3
>34. Kh2 Rd8 35. Rf2 Kb7 36. Qc4 Rdg8 37. Qxh4 R3g7
> 1-0 {ArasanX resigns}
>
>In the second position:
>
>[D] 4r3/8/7P/8/2kp4/3p1KP1/R4P2/8 w - - bm h7; id "arasan.140";
>
>h7 wouldn't be hard for a human to play, but Arasan played Ra4+.
>h7 is found eventually but it takes quite a long time (too long
>for blitz).
>
>--Jon



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