Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Three_Knights_Variation
Moves: 1. d4 d5 2. c4 Nf6 3. Nf3 e6 4. Nc3 Nc6 5. cxd5 Nxd5 6. Bg5 Be7 7. Bxe7 Ncxe7
8. e3 O-O 9. Bd3 Ng6 10. Bc2 b6 11. O-O Nxc3 12. bxc3 Bb7 13. c4 Qf6 14. Qd3
Bxf3 15. gxf3 Qxf3 16. Rfe1 Nh4 *
Position (FEN): r4rk1/p1p2ppp/1p2p3/8/2PP3n/3QPq2/P1B2P1P/R3R1K1 w - - 2 17
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 933
Best move: Qxh7#