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Subject: Re: KBNKP [a miniature study,mate in 34]

Author: Heiner Marxen

Date: 08:09:02 03/29/01

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On March 29, 2001 at 10:22:34, José Antônio Fabiano Mendes wrote:

>On March 29, 2001 at 09:11:54, Robert Hyatt wrote:
>
>>On March 29, 2001 at 08:50:14, José Antônio Fabiano Mendes wrote:
>>
>>>  An interesting miniature by a Russian composer(sorry,I can't remember
>>>  his name) I came across the other day:
>>>  [D]2N5/8/8/8/7p/8/7B/4K2k w
>>>     The _only_ winning move is 1.Bb8!! [mate in 34]
>>
>>
>>Here is the rest of the PV with ! moves being the only best move
>>in the position:
>>
>>1. Bb8! Kg2! 2. Ne7! Kf3! 3. Nf5 Ke4 4. Nxh4! Kd3 5. Nf3 Kc2 6. Bc7
>>Kb3 7. Ne5 Ka3 8. Nd7 Kb3 9. Kf2 Ka4 10. Nb8 Kb3 11. Kf3 Kc4! 12.
>>Ke4 Kc5! 13. Bd8! Kd6! 14. Bb6! Ke6! 15. Bc7! Kf6! 16. Nd7+ Kg5!
>>17. Nc5! Kg4 18. Ne6! Kh3! 19. Kf3! Kh4 20. Bd6 Kh3 21. Ng5+! Kh4
>>22. Kf4! Kh5 23. Kf5! Kh4! 24. Bb8 Kh5 25. Bg3! Kh6 26. Ne6! Kh5!
>>27. Ng7+ Kh6 28. Kf6! Kh7 29. Nf5 Kg8 30. Bd6! Kh7! 31. Kf7! Kh8
>>32. Kg6! Kg8 33. Nh6+! Kh8 34. Be5#
>
> One could ask, why the b8 square? This variant shows why:
>    1. Bb8 h3 2. Kf2 h2 3. Kg3 Kg1 4. Ba7+ Kh1 5. Nb6

Aah, beautiful!
Yes, I did ask myself that question.  After reading your explanation,
I seem to remember this "trick" to get the distant knight involved,
but I do not remember where I have seen that.

Heiner



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