Chess puzzle (Advantage)
Opening: French_Defense, French_Defense_Advance_Variation
Moves: 1. e4 e6 2. e5 d5 3. d4 c5 4. Nf3 Nc6 5. Bb5 Qb6 6. Bxc6+ Qxc6 7. O-O Qb6 8. c3
f6 9. exf6 Nxf6 10. Ne5 Bd6 11. b3 Qa5 12. Bg5 c4 *
Position (FEN): r1b1k2r/pp4pp/3bpn2/q2pN1B1/2pP4/1PP5/P4PPP/RN1Q1RK1 w kq - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1442
Best move: Bxf6