Author: George Tsavdaris
Date: 13:19:00 10/26/05
Go up one level in this thread
On October 26, 2005 at 14:46:22, Dieter Buerssner wrote:
>The nightmare positions can be found here:
>http://www.beepworld.de/members38/eigenmann/nightmare.htm
>
>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:
Why to find it? It is a draw like Kf2......
>
>Yace seems not to be able to win from here with white.
Again because there seems to be no win for white.......
[Event "15'/40+15'/40+15'"]
[Site "Thessaloniki"]
[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 "47"]
[Source "Walter Eigenman"]
[SourceDate "2005.09.30"]
[TimeControl "40/900:40/900:900"]
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 Nd4 (8... Nf4 {
Draws too, yet more difficult.} 9. Bd7 Nb3 (9... Ng6+ 10. Kg3 Nb3 11. a6 $18)
10. a6 Nc5 (10... Kg2 11. a7 Nc5 12. Bf5 e6 13. Bh7 e5 14. a8=Q Kf3 15. Bf5 Ke3
16. Qc6 Ncd3 17. Qxd6 Kf3 18. Kg5 Ke3 19. Qb6+ Kf3) 11. a7 Nxd7 12. a8=Q Ne5 (
12... Kh2 13. Kg4 $1 Nd3 14. Qa2+ Kg1 15. Qe2 Nf2+ 16. Kg3 Nh1+ 17. Kf3 Ne5+
18. Ke3 e6 19. Qa2 Ng4+ 20. Kf4 Ne5 21. Qxe6 Nd3+ 22. Ke3 Ne5 23. Qh3 $18) 13.
Kg3 Nh5+ 14. Kf2 Ng4+ (14... Nd3+ 15. Ke3 Nhf4 16. e5+ Kg1 17. Qg8+ Kh2 18. e6
$18) 15. Ke2 Kg2 $1 (15... Kg1 $2 16. Qe8 Nhf6 17. Qxe7 Kg2 18. Qe6 $18) 16.
e5+ Kg3 (16... Kh3 17. Qh1+ Nh2 18. Kf2 Nf4 19. exd6 exd6 20. Qe4 Kg4 21. Qb7
$18) 17. Qa3+ (17. Qf3+ Kh4 18. e6 Kg5 $11 19. Qf7 Nf4+ 20. Kd2 Nf6 21. Qxe7
Kf5 22. Qb7 Nxe6 $11) 17... Kf4 18. exd6 exd6 19. Qxd6+ Kf5 $11) 9. Bd7 Nf3+
10. Kh5 Nb3 11. a6 Nc5 12. a7 Nxd7 13. a8=Q Kg2 14. Kg4 (14. Kg6 Nde5+ 15. Kf5
Nh4+ 16. Ke6 Nhg6 $11) (14. Qd8 Nf6+ 15. Kg6 Nxe4 16. Qxe7 Ng3 $11) (14. Qa7
Nf6+ 15. Kg6 Nxe4 16. Kf5 Neg5 $11 (16... d5 $11) 17. Qxe7 (17. Kg4 Nh3 18.
Qxe7 d5 $11) 17... d5 18. Kf4 Nh3+ 19. Kf5 d4 20. Qg7+ Kf2 21. Qd7 Kg3 22. Qd6+
Kg2 23. Qd5 Kf2 24. Qe4 Nhg5 25. Qc2+ Ke3 26. Qc5 Ne4 $11 27. Qc1+ Ned2) 14...
Nfe5+ 15. Kf4 Ng6+ 16. Kf5 Nde5 $11 17. Qa2+ Kf3 18. Qb3+ Kf2 19. Qc2+ Ke3 20.
Qc3+ Ke2 21. Qg3 Kd2 22. Qf2+ Kd3 23. Qe1 Kc2 24. Qe2+ $11 *
>
>Regards,
>Dieter
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