Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Berlin_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d5 5. exd5 Qxd5 6. Bxc6+ Qxc6 7. Nc3 Bd6
8. Bg5 e4 9. Bxf6 *
Position (FEN): r1b1k2r/ppp2ppp/2qb1B2/8/4p3/2NP1N2/PPP2PPP/R2QK2R b KQkq - 0 9
Black to move.
Themes:  Opening  
Puzzle rating: 1592
Best move: exf3