Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Giuoco_Pianissimo
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. Ng5 Nh6 6. Qf3 O-O 7. O-O Nd4 8. Qd1
Bg4 9. f3 *
Position (FEN): r2q1rk1/ppp2ppp/3p3n/2b1p1N1/2BnP1b1/3P1P2/PPP3PP/RNBQ1RK1 b - - 0 9
Black to move.
Themes: Double Check, Kingside Attack Middlegame  
Puzzle rating: 1725
Best move: Nxf3+