Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Albin_Countergambit
Moves: 1. d4 d5 2. c4 e5 3. cxd5 Qxd5 4. Nf3 Bb4+ 5. Nc3 e4 6. Nd2 Qxd4 7. e3 Qe5 8.
Qa4+ Nc6 9. Nc4 Bxc3+ 10. bxc3 Qxc3+ 11. Ke2 Qxa1 12. Ne5 Ne7 13. Nxc6 Nxc6 14.
Qxe4+ Be6 15. Kf3 O-O 16. Bd3 Qxa2 *
Position (FEN): r4rk1/ppp2ppp/2n1b3/8/4Q3/3BPK2/q4PPP/2B4R w - - 0 17
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 723
Best move: Qxh7#