Author: Vincent Lejeune
Date: 07:41:42 01/19/06
Go up one level in this thread
On January 19, 2006 at 09:56:42, Rory Nolan wrote: >On January 18, 2006 at 19:15:58, Dann Corbit wrote: > >>On January 18, 2006 at 18:33:27, Vincent Lejeune wrote: >> >>>On January 18, 2006 at 17:15:18, Rory Nolan wrote: >>> >>>>Hello all, >>>>I found this positon in 'Chess for Zebras'. Can any engine find the move >>>> >>>>44...Nb3!! >>>> >>>>[D] 2k5/3b4/2q1p1Bp/ppn1P1pP/2pQP1P1/P1P5/2P2B1K/8 b - - 0 1 >>>> >>>>all the best >>>>Rory >>> >>>Why Nb3 is a good move ? >>>I only find white is winning after this sac :-( >> >>I guess that he is hoping for big things from the passed pawn. >>I don't see it either[*]. I will try some engines and see what they can come up >>with. >> >>[*] Which reminds me of the Star Wars line, "You shall PAY for your lack of >>VISION!!!" > >I'm more or less quoting from the book here so >'Black judges that he can afford to sac. a piece because the bishop is cut off >on g6'.... >'The alternative is 44...Na4 but then the knight is sidelined black has no >meaning ful counterplay and white can organise a bishop sac on g5 followed by >queening the h-pawn.'... >Rowson goes on but a bit but here is on possible line >45. cxb3 cxb3 >46. c4 Qxc4! 46.c4 : what' that ??? 46.Qd2 is very logical and then bring the king on b2, I don't see counterplay for black ... >47. Qxc4 bxc4 >48. Bd4 Kc7 >'the extra piece is not felt and the black king can disrupt the blockade' >Black may even be winning here; Rowson >e.g. >49.Kg3 K5c6 >50.a4 c3! >51 Bxc3 Kc5 and white loses slowly but surely > >good stuff eh >best >Rory > > >> >>>[Event "?"] >>>[Site "?"] >>>[Date "????.??.??"] >>>[Round "?"] >>>[White "Chess for Zebras"] >>>[Black "?"] >>>[Result "*"] >>>[SetUp "1"] >>>[FEN "2k5/3b4/2q1p1Bp/ppn1P1pP/2pQP1P1/P1P5/2P2B1K/8 b - - 0 1"] >>>[PlyCount "102"] >>> >>>1... Nb3 2. cxb3 cxb3 3. Qd2 Qc7 4. Bd4 Kb7 5. Kg2 Qc4 6. Kf2 a4 7. Ke1 Bc6 8. >>>Qf2 Ka6 9. Kd1 Bb7 10. Kc1 b4 11. Kb2 bxc3+ 12. Bxc3 Bc6 13. Qd2 Kb7 14. Bb4 >>>Qb5 15. Bd6 Qf1 16. Bc5 Qf3 17. Bd4 Kc8 18. Qf2 Qxg4 19. Qf8+ Kc7 20. Kc3 Qh3+ >>>21. Kb4 b2 22. Qe7+ Kc8 23. Bxb2 Qb3+ 24. Kc5 Qb5+ 25. Kd6 Qb6 26. Qf8+ Kb7 27. >>>Qf7+ Kc8 28. Bd4 Qxd4+ 29. Kxc6 Qc3+ 30. Kd6 Qd4+ 31. Ke7 Qd8+ 32. Kxe6 Qb6+ >>>33. Kd5 Qb5+ 34. Kd4 Qb2+ 35. Kc4 Qb3+ 36. Kc5 Qxa3+ 37. Kb6 Qe3+ 38. Ka6 Qd3+ >>>39. Ka5 Qc3+ 40. Kxa4 Qd4+ 41. Ka3 Qc3+ 42. Qb3 Qxe5 43. Bf5+ Kc7 44. Kb4 Qe7+ >>>45. Kc3 Qf6+ 46. Kd3 Qd6+ 47. Kc4 Qa6+ 48. Kd4 Qf6+ 49. Ke3 Kd8 50. Qg8+ Ke7 >>>51. Qh7+ Kf8 52. Qc7 *
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