Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. cxd5 Nxd5 4. e4 Nb6 5. Nf3 e6 6. Nbd2 Bb4 7. a3 Bd6 8. e5
Be7 9. Nc4 Nxc4 10. Bxc4 O-O 11. O-O c6 12. Be3 b5 13. Bb3 Ba6 14. Re1 Nd7 15.
Bc2 Nb6 16. Qd3 Nd5 *
Position (FEN): r2q1rk1/p3bppp/b1p1p3/1p1nP3/3P4/P2QBN2/1PB2PPP/R3R1K1 w - - 8 17
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 893
Best move: Qxh7#