Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Bc5 6. O-O Nf6 7. d4 exd4 8.
cxd4 Bb6 9. e5 Ne4 10. Re1 Nxf2 11. Kxf2 O-O 12. Be3 Ba5 13. Nbd2 d6 14. exd6
Qxd6 15. h3 Nb4 16. Ne4 Qe7 17. Bg5 Qd7 18. Ne5 Qf5+ 19. Kg1 Be6 20. a3 Bxc4
21. Nxc4 Nc2 22. Qxc2 Bxe1 23. Rxe1 Rae8 24. Nf6+ Qxf6 25. Bxf6 Rxe1+ 26. Kf2
Rfe8 27. Be5 Rh1 28. Qe4 f6 29. Qd5+ Kh8 30. Qd7 Rg8 31. Bg3 Rf8 32. Qxc7 Rd1
33. Qxb7 Rxd4 34. Nd6 Rd2+ 35. Kg1 Rd1+ 36. Kh2 a5 37. Qb3 Rd2 38. Nf7+ Kg8 39.
Nh6+ Kh8 40. Qg8+ Rxg8 *
Position (FEN): 6rk/6pp/5p1N/p7/8/P5BP/3r2PK/8 w - - 0 41
White to move.
Themes:  Endgame Mate in 1, Smothered Mate 
Puzzle rating: 818
Best move: Nf7#