Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Exchange_Variation
Moves: 1. d4 d5 2. c4 e5 3. e3 exd4 4. exd4 Nc6 5. Nf3 Bf5 6. Nc3 Nb4 7. Qa4+ c6 8.
Nxd5 Nc2+ 9. Kd2 Nxa1 10. Ne3 Be4 11. Kc3 Qb6 12. Ng5 O-O-O 13. c5 Bxc5 14.
Nxe4 Bxd4+ 15. Kc4 Bf6 16. Nc2 Rd4+ 17. Nxd4 *
Position (FEN): 2k3nr/pp3ppp/1qp2b2/8/Q1KNN3/8/PP3PPP/n1B2B1R b - - 0 17
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 819
Best move: Qxd4#