Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. e3 Bf5 4. Nf3 h6 5. c4 dxc4 6. Bxc4 e6 7. Nbd2 Nf6 8.
O-O Bd6 9. Bxd6 cxd6 10. Bb5 O-O 11. Re1 a6 12. Bc4 d5 13. Nh4 *
Position (FEN): r2q1rk1/1p3pp1/p1n1pn1p/3p1b2/2BP3N/4P3/PP1N1PPP/R2QR1K1 b - - 1 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1763
Best move: dxc4