Author: Robert Hyatt
Date: 13:34:05 01/19/01
Go up one level in this thread
On January 19, 2001 at 15:31:11, Thomas Lagershausen wrote:
>In the following game white has a winning knightsacrifice after the important
>pawnmoves 15.b4! and 16.b5!.Is a program able to find the plan?
>
>[Event "40/120"]
>[Site "?"]
>[Date "1992.11.25"]
>[Round "4"]
>[White "Lagershausen"]
>[Black "Fidelity Avantgard#6"]
>[ECO "A21"]
>[Result "1-0"]
>
>1. c4 e5 2. Nc3 Nc6 3. Nf3 d6 4. d4 Bg4 5. d5 Nce7 6. e4
>Ng6 7. Be2 Nf4 8. Bxf4 exf4 9. Nd4 Bd7 10. Bg4 Ne7 11. O-O
>Qc8 12. Bxd7+ Qxd7 13. Qb3 O-O-O 14. Qa3 Kb8 15. b4 g6
>16. b5 Bg7 17. Nc6+ bxc6 18. bxc6 Nxc6 19. Rab1+ Ka8
>20. Nb5 Bd4 21. dxc6 Qxc6 22. Nxd4 Qd7 23. Qa6 c5 24. Nb5
>Rb8 25. Nc3 f5 26. Nd5 fxe4 27. Nb6+ Rxb6 28. Rxb6 Qc8
>29. Qa4 Qe8 30. Qxe8+ Rxe8 31. Rxd6 1-0
>
>Greetings
>Thomas
Takes my program 25 seconds to find this move. I suspect others will be
even faster:
(2) 9-> 4.22 0.26 17. Nde2 Qg4 18. f3 Qg5 19. c5 Rhe8
20. cxd6 Rxd6 21. Rac1 f6 <HT>
10 9.38 0.04 17. Nde2 f3 18. gxf3 Qh3 19. Ng3 f5
20. c5 f4 21. cxd6 Rxd6 22. Nge2 Qxf3
10 22.08 0.37 17. Nce2 Rde8 18. c5 dxc5 19. Qxc5
Nc8 20. f3 f5 21. exf5 Rxe2 22. Nxe2
Bxa1 23. Rxa1 Qxf5
10 25.56 ++ 17. Nc6+!!
10 33.34 2.04 17. Nc6+ Nxc6 18. bxc6 bxc6 19. Rab1+
Ka8 20. Qa6 Rb8 21. dxc6 Qe6 22. Nb5
Rxb5 23. Qxb5 Qxe4
(3) 10-> 33.34 2.04 17. Nc6+ Nxc6 18. bxc6 bxc6 19. Rab1+
Ka8 20. Qa6 Rb8 21. dxc6 Qe6 22. Nb5
Rxb5 23. Qxb5 Qxe4
11 39.53 ++ 17. Nc6+!!
11-> 47.39 2.43 17. Nc6+ Nxc6 18. bxc6 bxc6 19. Rab1+
Ka8 20. Qa6 Rb8 21. dxc6 Qe6 22. Nb5
Rxb5 23. Qxb5 Qxe4
12 1:14 2.65 17. Nc6+ Nxc6 18. bxc6 Qg4 19. h3 Qc8
20. cxb7 Kxb7 21. Rab1+ Ka8 22. Nb5
Qb7 23. Nxd6 Rxd6 24. Rxb7 Kxb7 25.
Rb1+ <HT>
12-> 1:14 2.65 17. Nc6+ Nxc6 18. bxc6 Qg4 19. h3 Qc8
20. cxb7 Kxb7 21. Rab1+ Ka8 22. Nb5
Qb7 23. Nxd6 Rxd6 24. Rxb7 Kxb7 25.
Rb1+ <HT>
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