Chess puzzle (Crushing)
Moves: 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. Bd3 c5 6. c3 c4 7. Bc2 Nc6 8. f4 Nb6
9. Ngf3 Be7 10. Nf1 Bd7 11. Ng3 g6 12. a4 Na5 13. O-O Qc7 14. Nd2 O-O-O 15. b4
cxb3 16. Nxb3 Nbc4 17. Nxa5 Qxa5 18. Bd2 h5 19. Rf2 h4 20. Nf1 Bc6 21. Bb3 Nxd2
22. Qxd2 a6 23. Ra2 Rhg8 24. Ne3 Rh8 25. Nc2 Qc7 26. Rf1 Rdf8 27. Ne3 Kb8 28.
Nc2 Rc8 29. Ne3 Rcf8 30. Qb2 Ka8 31. Rc1 g5 32. f5 Qd7 33. f6 Bd8 34. Bd1 Rfg8
35. Rb1 Ba5 36. Bb3 g4 37. c4 dxc4 38. Nxc4 Bc7 39. Bc2 Bb8 *
Position (FEN): kb4rr/1p1q1p2/p1b1pP2/4P3/P1NP2pp/8/RQB3PP/1R4K1 w - - 3 40
White to move.
Themes:  Middlegame  
Puzzle rating: 999
Best move: Nb6+