Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. f4 d6 6. Nf3 O-O 7. f5 h6 8. Nd5
Ng4 9. Rf1 Nxh2 10. Nxh2 Qh4+ 11. Kd2 Qxh2 12. Qg4 h5 13. Nf6+ Kh8 14. Nxh5 g6
15. Nf6 Kg7 16. Nd5 Rh8 17. Qg5 Rh5 18. Qf6+ Kf8 19. Kd1 Qxg2 20. Ne3 Bxe3 *
Position (FEN): r1b2k2/ppp2p2/2np1Qp1/4pP1r/2B1P3/3Pb3/PPP3q1/R1BK1R2 w - - 0 21
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1244
Best move: Qxf7#