Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. O-O Be7 5. Re1 O-O 6. c3 a6 7. a3 d6 8. h3
Na5 9. Bd3 b5 10. Bc2 c5 11. b4 cxb4 12. axb4 Nc4 13. d3 Nb6 14. d4 Qc7 15. Bg5
Re8 16. Qd3 Nc4 17. Ra2 Nh5 18. Bxe7 Rxe7 19. Bb3 Nf4 20. Qd1 Bd7 21. Nfd2 Nxd2
22. Qxd2 a5 23. bxa5 Rxa5 24. Rxa5 Qxa5 25. dxe5 dxe5 26. Qd6 Qd8 27. Rd1 Qe8
28. Nd2 Ne2+ 29. Kh1 Nxc3 30. Rc1 Ne2 31. Rc7 Nd4 32. Bd1 f6 33. Bg4 f5 34.
exf5 Kf8 35. f4 Nxf5 36. Qd5 Ne3 37. Qc5 Nxg4 38. hxg4 Bxg4 39. fxe5 Bd7 40.
Ne4 Kg8 41. Qd5+ Be6 42. Qc5 Rxc7 43. Qxc7 Kh8 44. Nd6 Qh5+ 45. Kg1 Qd1+ 46.
Kh2 b4 47. Qd8+ Bg8 *
Position (FEN): 3Q2bk/6pp/3N4/4P3/1p6/8/6PK/3q4 w - - 2 48
White to move.
Themes: Pin Endgame Mate in 1, Smothered Mate 
Puzzle rating: 810
Best move: Nf7#