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Subject: Re: Avoid move position

Author: Andrew Williams

Date: 07:04:42 01/09/03

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On January 09, 2003 at 09:49:57, Uri Blass wrote:

>On January 09, 2003 at 09:35:16, Andrew Williams wrote:
>
>>Hi,
>>
>>Last night I was looking at a game between Hossa and PostModernist. PM lost
>>after it took the pawn on a2 in this position:
>>
>>[D]r3r1k1/pbpp1pp1/1p3n1p/8/q1PPp3/2P1P1P1/P2BQP1P/1R2RBK1 b - - 0 19 am Qxa2
>>
>>
>>How long does it take your program to ignore the Pawn here? Even after five
>>minutes thinking, PM still wants to take it. The full game follows:
>>
>>[Event "ICC 20 5"]
>>[Site "Internet Chess Club"]
>>[Date "2003.01.03"]
>>[Round "-"]
>>[White "Hossa"]
>>[Black "PostModernist"]
>>[Result "1-0"]
>>[ICCResult "Black resigns"]
>>[WhiteElo "2303"]
>>[BlackElo "2356"]
>>[Opening "English: four knights, kingside fianchetto"]
>>[ECO "A29"]
>>[NIC "EO.04"]
>>[Time "05:12:05"]
>>[TimeControl "1200+5"]
>>
>>1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. g3 Nd4 5. Bg2 Nxf3+ 6. Bxf3 Bb4 7. d4 e4
>>8. Bg2 O-O 9. Bg5 Re8 10. O-O Bxc3 11. bxc3 h6 12. Bf4 b6 13. Re1 Bb7 14.
>>Rb1 Nh5 15. Bd2 Qf6 16. Bh3 Qc6 17. e3 Nf6 18. Qe2 Qa4 19. Bf1 Qxa2 20. Ra1
>>Qb3 21. Reb1 Qc2 22. Rc1 Qb3 23. Be1 Nd5 24. Rc2 d6 25. Rb2 Qxb2 26. Qxb2
>>Nf6 27. c5 dxc5 28. dxc5 Red8 29. c4 Nd7 30. cxb6 cxb6 31. Bb4 Bc6 32. Bh3
>>f6 33. Bd6 Re8 34. Ra6 Ne5 35. c5 Bd5 36. Bxe5 Rxe5 37. cxb6 axb6 38. Rxa8+
>>Bxa8 39. Qxb6 Bd5 40. Qb8+ Kh7 41. Bd7 h5 42. Qc8 Kg6 43. Qf8 Bc4 44. Be8+
>>Kh7 45. Bf7 Bxf7 46. Qxf7 Kh6 47. Kg2 Rb5 48. h3 Rg5 49. Qg8 Re5 50. g4 hxg4
>>51. hxg4 Kg6 52. Kg3 Kh6 53. Kf4 Kg6 54. Qc4 Kh6 55. Qf7 Kh7 56. Qc7 Rg5 57.
>>Kxe4 Kg6 58. Qd7 Re5+ 59. Kd4 Ra5 60. f4 Ra1 61. Qe8+ Kh7 62. g5 fxg5 63.
>>fxg5 Rd1+ 64. Kc5 {Black resigns} 1-0
>>
>>
>>Andrew
>
>Easy for movei.
>Movei see that Qxa2 only draws at depth 10 after less than 10 seconds so it
>changes it's mind to another move.
>

I don't think it draws. I believe it loses horribly.

>Does PM want to take the pawn with positive score?

Yes.

>
>Uri

Thanks for your response.

Andrew




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