Chess puzzle (Checkmate)
Opening: Alekhine_Defense, Alekhine_Defense_Scandinavian_Variation
Moves: 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Bb5 a6 6. Ba4 b5 7. Bb3 c5 8. dxc5
Bxc5 9. a4 b4 10. Nxd5 exd5 11. Qxd5 Ra7 *
Position (FEN): 1nbqk2r/r2n1ppp/p7/2bQP3/Pp6/1B6/1PP2PPP/R1B1K1NR w KQk - 1 12
White to move.
Themes: Attacking f2 or f7 Opening Mate in 1 
Puzzle rating: 751
Best move: Qxf7#