====== Queen's Gambit ======
Best move for black is declined gambit


<pgn>
[Event "Declined"]
[White "Declined"]
1. d4 d5
2. c4 e6

[Event "Accepted"]
[White "Accepted"]
{Accepting gambit is not a good idea for black as white can regain piece and position advantage}
1. d4 d5
2. c4 dxc4
3. Qa4+ Bd7
4. Qxc4
</pgn>