Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Other_variations
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. cxd5 Nxd5 7. Nxd5 Bxg5 8.
Nc3 b6 9. Bd3 Bb7 10. Qh5 h6 11. Nf3 Bf6 12. O-O c5 13. h4 Bxf3 14. Qxf3 Nd7
15. Qe4 Bxh4 *
Position (FEN): r2q1rk1/p2n1pp1/1p2p2p/2p5/3PQ2b/2NBP3/PP3PP1/R4RK1 w - - 0 16
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 625
Best move: Qh7#