Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Advance_Variation
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Bd3 Bxd3 5. Qxd3 e6 6. f4 Ne7 7. Nf3 Nd7 8. Bd2
c5 9. c3 Nc6 10. O-O Be7 11. f5 exf5 12. Qxf5 cxd4 13. Ng5 Bxg5 *
Position (FEN): r2qk2r/pp1n1ppp/2n5/3pPQb1/3p4/2P5/PP1B2PP/RN3RK1 w kq - 0 14
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 847
Best move: Qxf7#