Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Exchange_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 Nc6 8.
Bd3 cxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Qxd2 O-O 12. e5 b6 13. O-O Bb7 14. Qf4
Rc8 15. Qe4 Na5 *
Position (FEN): 2rq1rk1/pb3ppp/1p2p3/n3P3/3PQ3/3B1N2/P4PPP/R4RK1 w - - 6 16
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 540
Best move: Qxh7#