Chess puzzle (Checkmate)
Opening: Indian_Defense, Indian_Defense_London_System
Moves: 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 4. e3 c5 5. c3 Be7 6. Bd3 Nh5 7. Be5 Nc6 8. O-O
Nxe5 9. Nxe5 Nf6 10. Nd2 O-O 11. f4 Qb6 12. Rb1 cxd4 13. exd4 Qc7 14. Qf3 b6
15. Qh3 Bb7 16. Ng4 Nxg4 *
Position (FEN): r4rk1/pbq1bppp/1p2p3/3p4/3P1Pn1/2PB3Q/PP1N2PP/1R3RK1 w - - 0 17
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 819
Best move: Qxh7#