Chess puzzle (Advantage)
Moves: 1. Nf3 c5 2. e4 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O g6 6. Nc3 Bg7 7. d3 Nf6 8. h3
O-O 9. Be3 Nd7 10. Qd2 b5 11. Bh6 Nb6 12. Bxg7 Kxg7 13. Rfd1 Bb7 14. b3 b4 15.
Ne2 a5 16. Qg5 Qd6 17. Qe5+ f6 18. Qxd6 exd6 19. Nf4 Rfe8 20. Re1 a4 21. Kf1
Kf7 22. Ne2 d5 23. exd5 cxd5 24. Nd2 Bc6 25. Red1 Bb5 26. Ng1 Re7 27. Ngf3 Rae8
28. Re1 h5 29. Rxe7+ Rxe7 30. Re1 g5 31. Rxe7+ Kxe7 32. g3 Ke6 33. Ke2 Kf5 34.
Ne1 g4 35. h4 Ke5 36. Ng2 f5 37. Nf4 Be8 38. Nb1 c4 39. bxc4 dxc4 40. dxc4 Nxc4
41. Nd3+ Ke4 42. Nxb4 Bb5 43. Nd2+ Nxd2+ 44. Kxd2 Kf3 45. Ke1 Bc4 46. a3 f4 47.
Nc6 fxg3 48. Ne5+ Kg2 49. Nxc4 gxf2+ 50. Kd2 f1=Q 51. Ne3+ Kg3 *
Position (FEN): 8/8/8/7p/p5pP/P3N1k1/2PK4/5q2 w - - 2 52
White to move.
Themes: Hanging Piece Endgame  
Puzzle rating: 800
Best move: Nxf1+