Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Rubinstein_Variation
Moves: 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nc6 5. Bb5 Bd7 6. c3 Bd6 7. Nf3 Nf6 8.
Bg5 Be7 9. Ne5 Nxe5 10. dxe5 Bxb5 11. Qxd8+ Rxd8 *
Position (FEN): 3rk2r/ppp1bppp/4pn2/1b2P1B1/4N3/2P5/PP3PPP/R3K2R w KQk - 0 12
White to move.
Themes:  Middlegame  
Puzzle rating: 1499
Best move: exf6