Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 Nf6 4. c3 Bf5 5. Nd2 e6 6. h3 Ne4 7. Ngf3 Nxd2 8.
Qxd2 Bd6 9. Be2 h6 10. a4 g5 11. Bxd6 Qxd6 12. a5 a6 13. O-O g4 14. hxg4 Bxg4
15. b4 h5 16. b5 axb5 17. Bxb5 *
Position (FEN): r3k2r/1pp2p2/2nqp3/PB1p3p/3P2b1/2P1PN2/3Q1PP1/R4RK1 b kq - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1257
Best move: Bxf3