Chess puzzle (Checkmate)
Opening: Semi-Slav_Defense, Semi-Slav_Defense_Noteboom_Variation
Moves: 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 Nf6 6. Ne5 Bd6 7. Bxc4 O-O 8. Bd2
Nbd7 9. Ng4 Nb6 10. Bb3 Nxg4 11. Qxg4 e5 12. Qe4 exd4 13. Qxd4 c5 14. Qd3 Be6
15. Bc2 c4 *
Position (FEN): r2q1rk1/pp3ppp/1n1bb3/8/2p5/2NQP3/PPBB1PPP/R3K2R w KQ - 0 16
White to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 980
Best move: Qxh7#