Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Nc3 Bc5 4. Bb5 a6 5. Ba4 b5 6. Bb3 Nf6 7. d3 h6 8. Be3
d6 9. h3 Nd4 10. Nd5 O-O 11. Nxf6+ Qxf6 12. Bd5 Rb8 13. c3 Ne6 14. Bxc5 dxc5
15. g3 b4 16. Nd2 Rd8 17. Qf3 Qg6 18. h4 Bb7 19. Bxb7 Rxb7 20. Nc4 f6 21. O-O
Nf4 22. Rfd1 c6 23. Kh2 Ne6 24. Na5 Rc7 25. a3 Rb8 26. Nc4 Qf7 27. Nd6 Qd7 28.
Nf5 bxc3 29. bxc3 Rb3 30. Rdc1 Rcb7 31. Qg4 Kh7 32. h5 Ng5 33. Qe2 Rb2 34. Rc2
Rxc2 35. Qxc2 Nf3+ 36. Kh1 Ng5 37. Kg2 c4 38. Rd1 Qe6 39. g4 Rd7 40. a4 cxd3
41. Rxd3 Rxd3 42. Qxd3 Qc8 43. Qd6 Qb7 44. Qf8 Nxe4 45. Qe8 c5 46. Qg6+ Kg8 47.
Nxh6+ Kh8 48. Nf5 Ng5+ 49. Kh2 Nf3+ 50. Kg3 Ng5 51. h6 Qf3+ 52. Kh2 Qh3+ 53.
Kg1 *
Position (FEN): 7k/6p1/p4pQP/2p1pNn1/P5P1/2P4q/5P2/6K1 b - - 4 53
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 773
Best move: Nf3#