Chess puzzle (Advantage)
Opening: Kings_Gambit_Declined, Kings_Gambit_Declined_Queens_Knight_Defense
Moves: 1. e4 e5 2. f4 Nc6 3. Nf3 Nf6 4. Nc3 d6 5. Bc4 h6 6. O-O Bg4 7. Ne2 Nxe4 8. d3
Nf6 9. fxe5 Bxf3 *
Position (FEN): r2qkb1r/ppp2pp1/2np1n1p/4P3/2B5/3P1b2/PPP1N1PP/R1BQ1RK1 w kq - 0 10
White to move.
Themes:  Opening  
Puzzle rating: 1714
Best move: exf6