Chess puzzle (Crushing)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. c3 d6 6. O-O b5 7. Bc2 Be7 8. d4
Bg4 9. h3 Bh5 10. Nbd2 O-O 11. Re1 exd4 12. g4 Nxg4 13. hxg4 Bxg4 14. Nf1 dxc3
15. bxc3 Ne5 16. N1h2 Bh5 17. Bf4 Bf6 18. Bxe5 Bxe5 19. Qd3 Bxh2+ 20. Nxh2 Qf6
21. e5 Qg5+ 22. Qg3 Qxg3+ 23. fxg3 dxe5 24. Rxe5 Bg6 25. Bxg6 fxg6 26. Rf1
Rxf1+ 27. Kxf1 Kf7 28. Ke2 Re8 29. Rxe8 Kxe8 30. Ke3 Kd7 31. Ng4 Ke6 32. Ke4 a5
33. Ne3 c6 34. a3 h5 35. Kd4 g5 36. Kc5 h4 37. gxh4 gxh4 38. Kxc6 g5 39. Kxb5
h3 40. Ng4 *
Position (FEN): 8/8/4k3/pK4p1/6N1/P1P4p/8/8 b - - 1 40
Black to move.
Themes:  Endgame, Knight Endgame  
Puzzle rating: 1166
Best move: Kf5