Giving away a pawn on purpose

A gambit is a trade that does not appear on the scoresheet: a pawn now, in exchange for time and space that you have to spend before your opponent gets organised.

From Italian gambetto, to trip
Rate a pawn is worth about three tempi
Real ones King's Gambit, Evans, Smith-Morra, Danish

A gambit is a deliberate material offer in the opening, almost always a pawn and almost always in the first ten moves. The word comes from the Italian gambetto, tripping someone with your leg, which is a fair description of what a good one feels like from the other side.

What you are buying is time. Every move your opponent spends capturing and then holding the extra pawn is a move not spent developing a piece, and the rough exchange rate is that a pawn is worth about three tempi in the opening. If your gambit does not produce three free moves of development, it has produced nothing and you are simply a pawn down.

The King's Gambit, still the clearest example

From the starting position. Two moves in, White offers the f-pawn and never asks for it back.

1.e4 e5 2.f4 exf4 3.Nf3

White is a pawn down and does not mind. The f-file is open for the rook that will land on f1, the centre belongs to White for now, and Black has to decide whether to defend the pawn on f4 or hand it back.

That is every gambit in miniature: a line opens, a centre is claimed, and the defender has an awkward extra pawn to think about. The King's Gambit is out of fashion at the top and still perfectly good below it, which is true of most gambits and worth saying plainly.

Which gambits are real

The Evans Gambit, 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4, gives a pawn to gain the tempo that builds a big centre with c3 and d4. The Smith-Morra, 1.e4 c5 2.d4 cxd4 3.c3, gives a pawn against the Sicilian for two open files and a lead in development. The Danish, 1.e4 e5 2.d4 exd4 3.c3, offers one pawn and often a second, and gets two bishops raking the kingside.

The Queen's Gambit, 1.d4 d5 2.c4, is the famous one and it is not really a gambit at all. Black can take on c4, but cannot keep the pawn: after 3.e3 b5 4.a4 c6 5.axb5 cxb5 6.Qf3 the queenside falls apart and the pawn comes back. Calling it a gambit is a historical accident, and it is the reason so many people who have learned the word from that opening are surprised by what a real one looks like.

How to play against one

Take the pawn once. Declining every gambit out of nerves hands your opponent the centre for free, which is what they wanted anyway. Then stop being greedy: develop, castle, and hand the pawn back at the moment it buys you a finished position. A gambit that has been accepted and then returned at the right time has usually failed, because the attacker spent moves on an attack that no longer has a target.

Trading queens is the other standard answer. Almost every gambit is an initiative looking for a king to hit, and initiative is the one advantage that expires.

If you play gambits, count your developed pieces against your opponent's every move. Three ahead is a real attack; one ahead is a lost pawn.
Gambits are excellent training under 1600, because they force you to play open positions where tactics decide things.
Do not repeat a gambit you lose with twice in the same way. The point of playing one is the positions it teaches you.
A pawn sacrifice later in the game is not a gambit. The word belongs to the opening.

Questions people ask

Should beginners play gambits?

Yes, for a while. Gambits produce open positions with pieces pointing at each other, which is the fastest way to build tactical pattern recognition, and losing a few games to a well-defended gambit teaches development better than any book. The habit to avoid is playing them hoping for a trap rather than for the position.

Is the Queen's Gambit actually a gambit?

Not in the usual sense, no. Black can capture on c4, but cannot hold the pawn against a4 and Qf3 hitting the loosened queenside, so White is offering a temporary loan rather than a sacrifice. Most true gambits, the King's Gambit and the Evans among them, offer a pawn that the defender really can keep if they are willing to suffer for it.

What do you get for a pawn in a gambit?

Time, lines and squares, in that order of importance. Time means moves of development your opponent has spent capturing instead. Lines mean open files and diagonals your pieces already occupy. Squares mean a centre your opponent has given up a share of. If a gambit gives you none of the three, it is unsound and you will feel it by move fifteen.

Gambit sits under Words you hear at the board in the reference. Nearby: