Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 d6 3. Bc4 Nf6 4. d3 Nc6 5. a3 h6 6. O-O g5 7. c3 g4 8. Nfd2 h5
9. Ba2 h4 10. Nc4 h3 11. g3 b5 12. Ne3 Bg7 13. f3 gxf3 14. Qxf3 Ne5 15. Qe2 c4
16. d4 Nd3 17. e5 dxe5 18. dxe5 Nxe5 19. Nf5 Qd5 20. Nxg7+ Kf8 21. Nf5 Bb7 22.
Kf2 Nd3+ 23. Ke3 Rd8 24. Nd4 Nxc1 25. Qf2 Qg5+ 26. Qf4 Nd5+ 27. Kd2 Nxf4 28.
gxf4 Qg2+ 29. Kxc1 Qxf1+ 30. Kc2 Be4+ 31. Kd2 Qf2+ 32. Kd1 Qe1+ 33. Kxe1 Rh4
34. Nd2 Bb7 35. Nxb5 Rg4 36. Nd4 Rxf4 37. Bxc4 Bd5 38. Bxd5 Rxd5 39. N4f3 e5
40. Ke2 Rg4 41. Rg1 f5 42. c4 Rd7 43. Rg3 Rxg3 44. hxg3 Rh7 45. Nh2 Kf7 46. c5
Kg6 47. Ndf3 Kf6 48. b4 Rg7 49. c6 e4 50. Nd4 Rxg3 51. b5 Rg2+ 52. Ke3 Ke5 53.
c7 *
Position (FEN): 8/p1P5/8/1P2kp2/3Np3/P3K2p/6rN/8 b - - 0 53
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1756
Best move: f4#