Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Normal_Variation
Moves: 1. e4 e6 2. d4 b6 3. Bd3 Bb7 4. Nf3 Nf6 5. Nbd2 c5 6. c3 cxd4 7. cxd4 Bb4 8.
O-O Bxd2 9. Nxd2 Nc6 10. e5 Nd5 11. Qg4 g6 12. Ne4 O-O 13. Bh6 Ncb4 14. Bb1 Qc7
15. Qh4 Qc6 16. f3 Ba6 17. Nf6+ Kh8 18. Bg7+ Kxg7 *
Position (FEN): r4r2/p2p1pkp/bpq1pNp1/3nP3/1n1P3Q/5P2/PP4PP/RB3RK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 740
Best move: Qxh7#