Chess puzzle (Advantage)
Opening: Scotch_Game, Scotch_Game_Scotch_Gambit
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 h6 5. Nxd4 Nxd4 6. Qxd4 Qe7 7. O-O Qc5 8.
Be3 Qxd4 9. Bxd4 Nf6 10. e5 d5 *
Position (FEN): r1b1kb1r/ppp2pp1/5n1p/3pP3/2BB4/8/PPP2PPP/RN3RK1 w kq d6 0 11
White to move.
Themes:  Middlegame  
Puzzle rating: 1607
Best move: exf6