Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Qxd5 4. Nc3 Qd8 5. e4 e6 6. a3 Nc6 7. Nf3 Be7 8. Bc4
O-O 9. O-O b6 10. Re1 Bb7 11. Bf4 Nb8 12. e5 Nd5 13. Rc1 Nxf4 14. Bb3 Nd5 15.
Nb5 c5 16. Qd3 Ba6 17. Bc2 Nc6 *
Position (FEN): r2q1rk1/p3bppp/bpn1p3/1NpnP3/3P4/P2Q1N2/1PB2PPP/2R1R1K1 w - - 4 18
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1076
Best move: Qxh7#