Chess puzzle (Advantage)
Opening: Bishops_Opening, Bishops_Opening_Ponziani_Gambit
Moves: 1. e4 e5 2. Bc4 Nf6 3. d4 exd4 4. e5 Qe7 5. Nf3 d6 6. O-O Nc6 *
Position (FEN): r1b1kb1r/ppp1qppp/2np1n2/4P3/2Bp4/5N2/PPP2PPP/RNBQ1RK1 w kq - 2 7
White to move.
Themes:  Opening  
Puzzle rating: 1369
Best move: exf6