Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. Nf3 Nc6 4. e3 Bg4 5. h3 Bxf3 6. Qxf3 e6 7. Qg3 Rc8 8.
Be2 Nb4 9. Na3 Ne4 10. Qh2 c5 11. c3 cxd4 12. exd4 Nxc3 *
Position (FEN): 2rqkb1r/pp3ppp/4p3/3p4/1n1P1B2/N1n4P/PP2BPPQ/R3K2R w KQk - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1388
Best move: bxc3