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Subject: Re: A study by Kasparián (somewhat off-topic)

Author: chandler yergin

Date: 22:07:26 10/10/05

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On October 11, 2005 at 00:35:47, José de Jesús García Ruvalcaba wrote:

>Hi,
>in the following study by Kasparián
>2N5/3k4/6N1/n2K4/4B3/8/6n1/8 w - - 0 1

Your Fen clearly shows a win for Black!
However, from the Position given
It's a Draw!
White cannot win, certainly within the 50 move Rule.
This is a good example of the PV showing a Win for White which is not possible.
Thank you for Posting it.

[D]8/1B6/5N2/2N1K3/5n2/6k1/4n3/8 w - - 0 54
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "New game"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "2N5/3k4/6N1/n2K4/4B3/8/6n1/8 w - - 0 1"]
[PlyCount "106"]

1. Nb6+ Kc7 2. Na8+ Kb8 3. Kd4 Ne1 4. Ne5 Nc2+ 5. Kc3 Nb7 6. Nb6 Ne3 7. Na4 Kc7
8. Kd4 Nd6 9. Bh7 Ndf5+ 10. Kc5 Kd8 11. Nb6 Ke7 12. Bg8 Kf6 13. Ned7+ Kg5 14.
Nf8 Kf6 15. Ba2 Ng7 16. Kd4 Ke7 17. Ng6+ Kf6 18. Nf4 Nef5+ 19. Kd5 Ng3 20. Nd7+
Kf5 21. Ng2 Ne2 22. Bb1+ Kg5 23. Ke5 Nh5 24. Nc5 Nef4 25. Ne4+ Kg4 26. Ne3+ Kf3
27. Nf5 Ne2 28. Nd2+ Kg4 29. Nd6 Nhf4 30. Bc2 Ng2 31. Bd1 Ngf4 32. Nb3 Nd3+ 33.
Kf6 Ndf4 34. Nc5 Kg3 35. Kf5 Kf3 36. Ke5 Ng6+ 37. Kf6 Ngf4 38. Nf5 Kg4 39. Ke5
Kf3 40. Ba4 Ng6+ 41. Kf6 Ngf4 42. Bc6+ Kg4 43. Nd6 Nd4 44. Bd7+ Kh5 45. Ke5
Nfe2 46. Bc8 Kg5 47. Bb7 Kg4 48. Ke4 Kg5 49. Nd7 Ne6 50. Ke5 N6f4 51. Ne4+ Kg4
52. Ndf6+ Kf3 53. Nc5+ Kg3 *



>white is to play and win. The solution is 1. Nb6 Kc7 2. Na8 Kb8 3. Kd4 Ne1 4.
>Ne5 Nb7 5. Nc6 Ka8 6. Kd5
>However, after 4... Nc2 (instead of Nb7)
>Nk6/8/8/n3N3/3KB3/8/2n5/8 w - - 8 5
>I have been unable to find a clear win for white. But I am a weak chess player,
>so probably I am missing something obvious, and ask you (and your engines) for
>enlightment.
>Thanks in advance,
>José.



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