Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Delayed_Alapin
Moves: 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Bd7 5. d3 g6 6. Bg5 Bg7 7. Bxf6 Bxf6 8.
Nbd2 Nc6 9. Nc4 Qc7 10. O-O O-O 11. Qd2 b5 12. Ne3 e6 13. Ng4 Bg7 14. Nh6+ Kh8
15. Qf4 f5 16. Qh4 Qd8 17. Ng5 Qe7 18. Nhf7+ Rxf7 *
Position (FEN): r6k/p2bqrbp/2npp1p1/1pp2pN1/4P2Q/2PP4/PP2BPPP/R4RK1 w - - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1070
Best move: Qxh7#