Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Steinitz_Countergambit
Moves: 1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. Nf3 Nf6 5. c3 Bg4 6. Bd3 e6 7. Nbd2 cxd4 8.
cxd4 Bb4 9. a3 Ba5 10. b4 Bc7 11. Rc1 a6 12. b5 Bxf4 *
Position (FEN): r2qk2r/1p3ppp/p1n1pn2/1P1p4/3P1bb1/P2BPN2/3N1PPP/2RQK2R w Kkq - 0 13
White to move.
Themes:  Middlegame  
Puzzle rating: 1567
Best move: bxc6