The Queen's Gambit Acccepted has long been the most direct answer to the sequence 1 d4 d5 2 c4. White offers a gambit with 2 c4, so Black accepts the challenge by simply taking 2...dxc4 a positional blunder, giving up the central pawn for nothing? The answer was soon clarified: No! Black is temporarily giving up the center. Black will restore the central balance by soon playing c5 (or e5 in some cases). Then White's only real satisfaction is the possession of the initial tempo. But even so, Black can fight for a dynamic equality by rapid piece development and - quite often - with a Queenside pawn advance after a6 and b5 (this normally taking place after a preliminary c5).