Chess puzzle (Checkmate)
Opening: Rat_Defense, Rat_Defense_Antal_Defense
Moves: 1. e4 d6 2. d4 Nd7 3. Nc3 e6 4. Nf3 Be7 5. Bf4 Ngf6 6. Bc4 O-O 7. Qd2 a6 8.
O-O-O Nb6 9. Qd3 d5 10. exd5 exd5 11. Bb3 Be6 12. Ng5 Nh5 *
Position (FEN): r2q1rk1/1pp1bppp/pn2b3/3p2Nn/3P1B2/1BNQ4/PPP2PPP/2KR3R w - - 4 13
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 673
Best move: Qxh7#