Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 d6 7. O-O Nf6 8. d5
Ne7 9. Bg5 Bd7 10. Bxf6 gxf6 11. Be2 Bb6 12. c4 Ng6 13. g3 f5 14. Nbd2 Qf6 15.
a4 a5 16. Rb1 f4 17. Rxb6 cxb6 18. c5 bxc5 19. Nc4 O-O 20. Qb3 b5 21. axb5 Rfb8
22. b6 a4 23. Qa3 Bb5 24. Rb1 Bxc4 25. Bxc4 fxg3 26. fxg3 Ne7 27. Nd2 Qh6 28.
Rb2 Rb7 29. Bf1 Nc8 30. Nc4 Qc1 31. Qf3 a3 32. Qg4+ Kf8 33. Rd2 a2 34. Rxa2
Rxa2 35. Qxc8+ Kg7 36. Qg4+ Kf6 37. Nxd6 Rxb6 38. Qf5+ Kg7 39. Qxf7+ Kh6 40.
Nf5+ Kg5 41. Qg7+ Rg6 42. Qxe5 Qa1 43. h4+ Kg4 44. Ne3+ Kf3 *
Position (FEN): 8/7p/6r1/2pPQ3/4P2P/4NkP1/r7/q4BK1 w - - 3 45
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1521
Best move: Qf4#