Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Exchange_Variation
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nf6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. O-O e6
8. Nc3 Bd6 9. Bg5 Qc7 10. h3 h6 11. Be3 g5 12. Nb5 Qb8 13. Nxd6+ Qxd6 14. b3 g4
15. hxg4 Nxg4 16. Nd2 *
Position (FEN): r3k2r/pp1n1p2/3qp2p/3p4/3P2n1/1P2B3/P1PN1PP1/R2Q1RK1 b kq - 1 16
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 802
Best move: Qh2#