Chess puzzle (Checkmate)
Opening: Caro-Kann_Defense, Caro-Kann_Defense_Other_variations
Moves: 1. e4 c6 2. Nf3 d5 3. e5 f6 4. d4 fxe5 5. Nxe5 g6 6. Qf3 Bg7 *
Position (FEN): rnbqk1nr/pp2p1bp/2p3p1/3pN3/3P4/5Q2/PPP2PPP/RNB1KB1R w KQkq - 2 7
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 868
Best move: Qf7#