Chess puzzle (Advantage)
Opening: Center_Game, Center_Game_von_der_Lasa_Gambit
Moves: 1. e4 e5 2. d4 exd4 3. Bc4 Bc5 4. c3 Nc6 5. Nf3 d6 6. O-O Nf6 7. cxd4 Bb6 8. a4
a5 9. Bxf7+ *
Position (FEN): r1bqk2r/1pp2Bpp/1bnp1n2/p7/P2PP3/5N2/1P3PPP/RNBQ1RK1 b kq - 0 9
Black to move.
Themes: Hanging Piece Opening  
Puzzle rating: 619
Best move: Kxf7