Chess puzzle (Checkmate)
Opening: Elephant_Gambit, Elephant_Gambit_Paulsen_Countergambit
Moves: 1. e4 e5 2. Nf3 d5 3. exd5 e4 4. d4 exf3 5. Qxf3 Nf6 6. Bg5 Be7 7. Bxf6 Bxf6 8.
Bc4 Bxd4 9. O-O Bxb2 10. Re1+ Kf8 11. d6 Bxa1 *
Position (FEN): rnbq1k1r/ppp2ppp/3P4/8/2B5/5Q2/P1P2PPP/bN2R1K1 w - - 0 12
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 658
Best move: Qxf7#