Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_London_System
Moves: 1. d4 e6 2. Bf4 Nf6 3. Nf3 d6 4. Nc3 a6 5. e4 Nbd7 6. Bd3 Be7 7. Qe2 O-O 8.
O-O-O Re8 9. h4 Bf8 10. e5 Nh5 11. Qe4 Nxf4 *
Position (FEN): r1bqrbk1/1ppn1ppp/p2pp3/4P3/3PQn1P/2NB1N2/PPP2PP1/2KR3R w - - 0 12
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 581
Best move: Qxh7#