Chess puzzle (Checkmate)
Opening: Sicilian_Defense, Sicilian_Defense_Hyperaccelerated_Fianchetto
Moves: 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Qxd4 Nf6 5. e5 Nc6 6. Qa4 Nd5 7. Qb3 Nb6 8. a4
a5 9. Be3 Nb4 10. Nbd2 N6d5 11. Bc4 Nxe3 *
Position (FEN): r1bqkb1r/1p1ppp1p/6p1/p3P3/PnB5/1Q2nN2/1PPN1PPP/R3K2R w KQkq - 0 12
White to move.
Themes: Attacking f2 or f7 Middlegame Mate in 1 
Puzzle rating: 988
Best move: Bxf7#