Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Ragozin_Defense
Moves: 1. d4 d5 2. c4 Nf6 3. Nc3 e6 4. Nf3 Bb4 5. Bg5 Bxc3+ 6. bxc3 dxc4 7. e4 Qd7 8.
Bxc4 Nxe4 9. Qb3 Nxg5 10. Nxg5 O-O 11. Qc2 Qd8 *
Position (FEN): rnbq1rk1/ppp2ppp/4p3/6N1/2BP4/2P5/P1Q2PPP/R3K2R w KQ - 3 12
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 701
Best move: Qxh7#