Chess puzzle (Advantage)
Opening: Italian_Game, Italian_Game_Two_Knights_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 d5 5. exd5 Nxd5 6. O-O Bc5 7. Bb5 f6 8. d4
exd4 9. Re1+ Ne7 10. Qd3 Qd6 11. Qe4 Bd7 *
Position (FEN): r3k2r/pppbn1pp/2nq1p2/1Bb5/3pQ3/5N2/PPP2PPP/RNB1R1K1 w kq - 6 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1660
Best move: Bf4