Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 Nc6 4. c4 e6 5. Nc3 Bd6 6. Bg3 O-O 7. Nf3 Ne4 8. Nxe4
dxe4 9. Qc2 exf3 10. gxf3 Bxg3 11. hxg3 Nb4 *
Position (FEN): r1bq1rk1/ppp2ppp/4p3/8/1nPP4/4PPP1/PPQ2P2/R3KB1R w KQ - 1 12
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 536
Best move: Qxh7#