Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Marshall_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. Nf3 Bf5 4. Nc3 e6 5. Bg5 Be7 6. e3 h6 7. Bf4 Bd6 8. Bxd6
cxd6 9. cxd5 Nxd5 10. Bb5+ Nc6 11. Nxd5 exd5 12. Qb3 Be6 13. O-O O-O 14. Qd3 a6
15. Ba4 b5 16. Bc2 Nb4 *
Position (FEN): r2q1rk1/5pp1/p2pb2p/1p1p4/1n1P4/3QPN2/PPB2PPP/R4RK1 w - - 2 17
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 613
Best move: Qh7#