Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Exchange_Variation
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bd3 Bg4 6. c3 e6 7. Bf4 Bd6 8.
Bxd6 Qxd6 9. Nbd2 Nf6 10. Qc2 O-O 11. h3 Bh5 12. O-O-O Rac8 13. g4 Nb4 14. Qb1
Nxd3+ 15. Qxd3 Bg6 16. Qe2 Rxc3+ 17. bxc3 *
Position (FEN): 5rk1/pp3ppp/3qpnb1/3p4/3P2P1/2P2N1P/P2NQP2/2KR3R b - - 0 17
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 462
Best move: Qa3#