Chess puzzle (Checkmate)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. d4 e6 2. e4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. O-O
Nxd4 9. Nxd4 Qxd4 10. Nc3 Ne7 11. Qe2 a6 12. Kh1 Nf5 13. Bxf5 exf5 14. Rd1 Qc4
15. Qf3 Rd8 16. Rxd5 *
Position (FEN): 3rkb1r/1p1b1ppp/p7/3RPp2/2q5/2N2Q2/PP3PPP/R1B4K b k - 0 16
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 478
Best move: Qf1#