Chess puzzle (Checkmate)
Moves: 1. d3 e5 2. e3 d5 3. d4 exd4 4. exd4 Nf6 5. Nf3 Bd6 6. c4 Qe7+ 7. Be3 O-O 8. c5
Bf4 9. Qd2 Ng4 10. Be2 Bxe3 11. fxe3 Nxe3 12. Kf2 Ng4+ 13. Kg1 Re8 14. Nc3 Be6
15. h3 Nh6 16. Re1 Nc6 17. Kh2 Qf6 18. Rhf1 Nf5 19. Bb5 Red8 20. Bxc6 bxc6 21.
Ne5 Qh4 22. Nxc6 Qg3+ 23. Kh1 Re8 24. Rf3 Qg6 25. Ne5 Qh6 26. Qf2 Nh4 27. Rxf7
Qh5 28. Rf4 Rf8 29. Rf1 Rxf4 30. Qxf4 Nxg2 31. Kxg2 Bxh3+ 32. Kg1 Bxf1 33. Qxf1
Rf8 34. Qg2 Qh4 35. Qxd5+ Kh8 36. Nf7+ Kg8 37. Nh6+ Kh8 38. Qg8+ Rxg8 *
Position (FEN): 6rk/p1p3pp/7N/2P5/3P3q/2N5/PP6/6K1 w - - 0 39
White to move.
Themes:  Endgame Mate in 1, Smothered Mate 
Puzzle rating: 881
Best move: Nf7#