Chess puzzle (Crushing)
Moves: 1. c4 e6 2. Nc3 d5 3. e3 Nf6 4. Nf3 b6 5. d4 Bb7 6. cxd5 Nxd5 7. a3 c5 8. Bb5+
Bc6 9. Bxc6+ Nxc6 10. e4 Nf6 11. d5 exd5 12. exd5 Nb8 13. Bf4 Bd6 14. Qe2+ Kf8
15. Bg5 h6 16. Bxf6 Qxf6 17. Ne4 Qd8 18. Nxd6 Qxd6 19. Qe5 Qxe5+ 20. Nxe5 Ke7
21. O-O-O Rd8 22. Rhe1 Kf8 23. d6 Nd7 24. Nc6 Re8 25. Rxe8+ Kxe8 26. Re1+ Kf8
27. Kd2 a6 28. Kd3 Re8 29. Rxe8+ Kxe8 30. Ke4 Nf6+ 31. Ke5 a5 32. Nb8 Kd8 33.
f3 Kc8 34. Nc6 Kd7 35. Nb8+ Kd8 36. h4 h5 37. Nc6+ Kd7 38. Nb8+ Kc8 39. Nc6 Kd7
40. Nb8+ Ke8 41. Nc6 a4 42. Nb8 Nd7+ *
Position (FEN): 1N2k3/3n1pp1/1p1P4/2p1K2p/p6P/P4P2/1P4P1/8 w - - 2 43
White to move.
Themes:  Endgame, Knight Endgame  
Puzzle rating: 1070
Best move: Nxd7