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Subject: Re: Try this position with Shredder 9.1 UCI

Author: Mike Hood

Date: 09:32:39 10/24/05

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On October 24, 2005 at 12:16:45, Uri Blass wrote:

>On October 24, 2005 at 11:59:20, Günther Simon wrote:
>
>>On October 24, 2005 at 11:44:29, Laurence Chen wrote:
>>
>>>On October 24, 2005 at 10:05:33, Mike Hood wrote:
>>>
>>>>On October 24, 2005 at 09:55:40, Kurt Utzinger wrote:
>>>>
>>>>>On October 24, 2005 at 09:51:01, Jouni Uski wrote:
>>>>>
>>>>>>[D]N7/PPPPPPPP/K1k3qB/brpnn3/7N/6rb/8/8 w - -
>>>>>>
>>>>>>I don't know if it's legal (from old CSS magazine).
>>>>>>
>>>>>>Jouni
>>>>>
>>>>>      This position is of no practical interest
>>>>>      and therefore (for me) not worth testing.
>>>>>      It's also an illegal (impossible) position.
>>>>>      Regards
>>>>>      Kurt
>>>>
>>>>Kurt, I agree that it's a highly unlikely position. But illegal? Impossible? If
>>>>you'll lay your money on the table, I bet that I can give you the notation for a
>>>>legal chess game resulting in this position. It won't be a sensible game, but I
>>>>only want to prove the possibility of reaching this position.
>>>>
>>>>Apart from this, extreme positions are often useful to highlight the strengths
>>>>and weaknesses of engines.
>>>
>>>I agree with Kurt. The position is impossible to achieve.  If you don't see why,
>>>then look again. What guarantees would Kurt or anyone have in collect the money
>>>when you lose the bet?
>>
>>Of course it's impossible and that took me less than 10 seconds ;)
>>
>>Guenther
>
>It is possible to achieve it by legal moves
>
>Here is a game that I played against myself when this position happened.
>
>Of course I am a bad player so there were a lot of mistakes of both sides during
>the game ;)
>
>[Event "Blitz:3'"]
>[Site "?"]
>[Date "????.??.??"]
>[Round "?"]
>[White "New game"]
>[Black "Fruit 2.2"]
>[Result "*"]
>[PlyCount "150"]
>[TimeControl "180"]
>
>{512MB, Fritz8.ctg, URI-AMD} 1. c4 h5 2. a4 h4 3. Ra3 g5 4. Qc2 f5 5. Qxf5 g4
>6. Qxg4 h3 7. Qxh3 Nf6 8. Rd3 Na6 9. Rd6 cxd6 10. c5 e5 11. c6 e4 12. Qg4 b5
>13. h4 b4 14. Rh3 Rb8 15. Qxe4+ Kf7 16. Qxb4 Ra8 17. Qb7 Kg6 18. Qxa7 Rb8 19.
>Qxd7 Ra8 20. Qa7 Rb8 21. Qc5 dxc5 22. d3 Kf7 23. Kd2 Bxh3 24. Kc3 Ke6 25. h5
>Kd6 26. h6 Kc7 27. h7 Kb6 28. c7 Kc6 29. g4 Rc8 30. g5 Nb8 31. Kb3 Nbd7 32. a5
>Bd6 33. a6 Be5 34. Ka4 Rf8 35. Ka5 Nd5 36. a7 Rf5 37. Nc3 Rf8 38. Na4 Rf5 39.
>Nb6 Rf8 40. Na8 Rf3 41. Ka6 Ne7 42. b4 Kd5 43. b5 Qh8 44. b6 Rcf8 45. b7 R8f4
>46. g6 Bc3 47. e3 Qd4 48. Bg2 Bxg2 49. e4+ Kd6 50. e5+ Kd5 51. e6 Kd6 52. g7
>Qb4 53. d4 Qb1 54. d5 Ke5 55. d6 Nd5 56. e7 N7f6 57. d7 Kd6 58. Ba3 Rh3 59. f3
>Rd4 60. f4 Ne4 61. f5 Kc6 62. f6 Rb4 63. f7 Rb5 64. Ne2 Ba5 65. Ng3 Nef6 66.
>Nh5 Ng4 67. Bc1 Qg6 68. Bh6 Ne5 69. Nf4 Bf3 70. Ng2 Rg3 71. Nh4 Bg2 72. Nf3 Bh3
>73. Nh4 Re3 74. Nf5 Rf3 75. Nh4 Rg3 *


Thanks, Uri. You just saved me the trouble of working out a game like that
myself :)



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