Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Samisch_Attack
Moves: 1. e4 Nf6 2. e5 Nd5 3. Nc3 Nxc3 4. dxc3 b6 5. Qf3 Nc6 6. Bc4 Bb7 *
Position (FEN): r2qkb1r/pbpppppp/1pn5/4P3/2B5/2P2Q2/PPP2PPP/R1B1K1NR w KQkq - 4 7
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1181
Best move: Qxf7#