Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Other_variations
Moves: 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 dxe5 6. Nxe5 Bf5 7. Nc3 e6 8. Qf3
Bd6 9. Bd3 Bxd3 *
Position (FEN): rn1qk2r/ppp2ppp/1n1bp3/4N3/2PP4/2Nb1Q2/PP3PPP/R1B1K2R w KQkq - 0 10
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 1289
Best move: Qxf7#