What a gambit buys

Trade a pawn for time.

A gambit gives up a pawn (sometimes more) to gain something in return: a lead in development, open lines for your pieces, and the initiative. While your opponent spends moves grabbing and defending the extra pawn, you race ahead and start dictating play.

The diagram shows the Evans Gambit after White has given the b-pawn and struck with c3 and d4: a big pawn center and a clear development lead — full value for the pawn. The catch is that the activity must be real. If you can't point to concrete pressure, it's just a lost pawn. And when you're on the receiving end, the antidote is your own development — accept if you like, but be ready to give the pawn back rather than cling to it.

You're buying time, open lines, and the initiative — not a forced mate.
No activity to show for it? Then it's simply a lost pawn.
Facing a gambit: develop fast and return the pawn when it kills the attack.

Evans Gambit: a pawn down, but White has a big center (c3/d4/e4) and faster development — that's the trade.

What is White getting in return for the sacrificed pawn here?

Answer the question to keep going!