Chess puzzle (Checkmate)
Opening: Old_Indian_Defense, Old_Indian_Defense_Ukrainian_Variation
Moves: 1. d4 Nf6 2. c4 d6 3. Nc3 e5 4. d5 Bf5 5. Bg5 e4 6. f3 exf3 7. Nxf3 Nbd7 8. e4
Bg6 9. Bd3 Be7 10. O-O O-O 11. Bc2 Rc8 12. Nh4 Bh5 13. Qd3 Nxd5 14. exd5 Bxg5 *
Position (FEN): 2rq1rk1/pppn1ppp/3p4/3P2bb/2P4N/2NQ4/PPB3PP/R4RK1 w - - 0 15
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 487
Best move: Qxh7#