Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. Nf3 Bf5 4. a3 e6 5. e3 a6 6. c4 Bd6 7. Bg3 Bxg3 8. hxg3
Nf6 9. Qb3 Rb8 10. Nbd2 Ne4 11. Nxe4 Bxe4 12. Bd3 Bxd3 13. Qxd3 dxc4 14. Qxc4
Qd5 15. Qd3 e5 16. Ng5 e4 17. Nxe4 O-O 18. Nf6+ gxf6 *
Position (FEN): 1r3rk1/1pp2p1p/p1n2p2/3q4/3P4/P2QP1P1/1P3PP1/R3K2R w KQ - 0 19
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 462
Best move: Qxh7#