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Subject: Nightmare position 25

Author: Dieter Buerssner

Date: 11:46:22 10/26/05


The nightmare positions can be found here:
http://www.beepworld.de/members38/eigenmann/nightmare.htm

[D] 6R1/4p3/B2p4/P7/4P3/p3n3/1n6/4K2k w - -

This is a very deep position. Yace cannot find Rc8 in 10 hours. The analysis
given by Walter:

[Event "Pervakov 1984"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Nightmare Nr.025"]
[Black "?"]
[Result "*"]
[Annotator "W.Eigenmann"]
[SetUp "1"]
[FEN "6R1/4p3/B2p4/P7/4P3/p3n3/1n6/4K2k w - - 0 1"]
[PlyCount "15"]
[Source "Walter Eigenman"]
[SourceDate "2005.09.30"]

1. Rc8 $18 a2 (1... Kg2 2. Rc1 a2 3. Kd2 $18) 2. Rc1 a1=Q 3. Rxa1 Nc2+ 4. Kf2+
Nxa1 5. Bb5 Nd1+ 6. Kg3 Nc3 7. Bc6 Ne2+ 8. Kh4 $18 *


Is the position at the end of the main line a forced win for white?

[D] 8/4p3/2Bp4/P7/4P2K/8/4n3/n6k b - - 7 8

Yace seems not to be able to win from here with white.

Regards,
Dieter




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