Chess puzzle (Advantage)
Opening: Ruy_Lopez, Ruy_Lopez_Morphy_Defense
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. Bd5 Nxd5 8.
exd5 Ne7 9. Nxe5 O-O 10. d4 Bd6 11. Qf3 Bb7 12. Re1 Bxd5 13. Qg3 *
Position (FEN): r2q1rk1/2ppnppp/p2b4/1p1bN3/3P4/6Q1/PPP2PPP/RNB1R1K1 b - - 1 13
Black to move.
Themes:  Opening  
Puzzle rating: 1849
Best move: f6