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Subject: Re: Troitzky beauty

Author: Martin Giepmans

Date: 02:36:45 04/02/02

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On April 02, 2002 at 02:36:01, Ed Schröder wrote:

>On April 01, 2002 at 18:48:39, Martin Giepmans wrote:
>
>>On April 01, 2002 at 17:51:15, Ed Schröder wrote:
>>
>>>[d]8/7N/1k2pp2/3P4/8/8/2r5/5K1R w - - 0 1
>>>
>>>Solution:
>>>
>>>1. dxe6 Rc1+ 2. Kf2 Rxh1 3. e7 Rh2+ 4. Kf3 Rh3+ 5. Kf4 Rh4+ 6. Kf5 Rh5+
>>>7. Kxf6 Rh6+ 8. Kf5 Rh5+ 9. Kf4 Rh4+ 10. Kf3 Rh3+ 11. Ke2 Rh2+ 12. Kd3
>>>Rh3+ 13. Kd4 Rh4+ 14. Kd5 Rh5+ 15. Kd6 Rh6+ 16. Nf6 Rxf6+ 17. Kd5 Rf5+
>>>18. Kd4 Rf4+ 19. Ke3 Rf1 20. Ke2 1-0
>>>
>>>1.dxe6 is easy, I assume every chess program will find it instantly.
>>>
>>>Difficult to find is 2.Kf2!!
>>>
>>>And that's the hard challenge for your favorite engine.
>>>
>>>Ed
>>
>>
>>My Spider shows Kf2 in the PV after 42 seconds (AMD 1200, no TB):
>>
>>13  00:00:42  + 1.18  D5xE6 C2-C1 F1-F2 C1xH1 E6-E7 H1-H2 F2-F3 H2-H3 F3-F4
>>                      H3-H4 F4-F5 H4-H5 F5xF6 H5-H6 F6-F5 H6-H5 H7-G5 H5-H8
>>                      G5-F7 H8-G8 F5-E5
>>
>>Martin
>
>Congrats!
>
>It must be eval, no?
>
>Ed

Yes. And the PV looks suspicious near the end ...

Martin




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