Author: Robert Hyatt
Date: 15:09:14 09/26/02
Go up one level in this thread
On September 26, 2002 at 17:39:24, Dieter Buerssner wrote: >On September 25, 2002 at 17:01:51, José Antônio Fabiano Mendes wrote: > >> Eduard, if Ruffian is really that strong without tablebases, >> most likely it will find the win in this KNPKN position: >> 8/K7/5kn1/2N5/8/8/P7/8 w > >I don't have this TB. Which is the correct move? Is there exactly one move >winning? Yace likes Nd3, and if I play out suggested moves, seems to be able to >win this. > >Regards, >Dieter here's the PV from crafty. ! moves are the only "optimal" move although other moves may still win... they won't win as quickly... Here most moves (ie a3 or a4) are instant draws... 1. Nd3! Ne7 2. a4! Ke6! 3. Kb7! Nf5 4. Kc7 Nd4 5. a5! Nb5+ 6. Kb6! Nd6! 7. Kc6 Nc8! 8. Nf4+ Ke5! 9. Ne2! Na7+! 10. Kb7 Nb5! 11. Kb6! Nd6! 12. Kc6! Nc8! 13. a6! Na7+! 14. Kb6! Nc8+! 15. Kc7! Nd6 16. Nc3! Nf5 17. a7! Nd4 18. a8=Q Ne6+! 19. Kc8 Ng5 20. Qa4 Nh3 21. Ne2 Nf2 22. Qf4+ Kd5 23. Qxf2 Kc4 24. Qf5 Kb3 25. Qc5 Ka2 26. Nd4 Ka1! 27. Qc7 Kb1 28. Qc2+! Ka1 29. Nb3#
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