King's Gambit
The romantic opening. White offers a pawn on move two to tear open the f-file and race for the black king.
| First moves | 1.e4 e5 2.f4 |
|---|---|
| ECO codes | C30-C32 (declined), C33-C39 (accepted) |
| Character | Sharp, open, gambit |
| Best for | Attacking players who want unbalanced positions from move two |
Open any line on the analysis board, or play it out against a bot from where it ends.
Related openings
Vienna Game
White develops the queen's knight first and keeps f4 in reserve. Flexible, sharp, and full of tricks.
Italian Game
The classical way to open a chess game: develop, aim at f7, castle. The best first opening for most players.
Evans Gambit
White throws in a b-pawn to gain time for c3 and d4, turning a quiet Italian into a fast attack.
What White is playing for
After 2.f4 White offers the f-pawn to deflect the e5 pawn. If Black takes, White gets the center with d4 and a half-open f-file aimed straight at f7, the weakest square in Black's camp. The price is a loosened king: the e1-h4 diagonal is open, and ...Qh4+ is a real threat in many lines.
It was the main opening of the nineteenth century, and engines have shown it is not refuted. Black can equalize with accurate play, but most club players have never faced it and have to find that play over the board.
The main lines
- 3.Nf3 (King's Knight's Gambit). The main line. Nf3 stops ...Qh4+ and prepares d4. Black chooses between holding the pawn with ...g5, returning it with ...d5, or the Fischer Defense, 3...d6.
- 3...g5 4.h4 g4 5.Ne5 (Kieseritzky). White undermines the pawn chain at once. The resulting positions are wild but well mapped; this is where most of the theory lives.
- 3.Bc4 (Bishop's Gambit). White allows ...Qh4+ and moves the king to f1, betting that the queen sortie wastes more time than the king move costs.
- Declining: 2...Bc5 or 2...d5. 2...Bc5 eyes g1 so White cannot castle short easily; the Falkbeer, 2...d5, gives back a pawn to open lines before White is ready.
How to meet it as Black
Taking the pawn is the most principled answer, but you do not need to keep it forever. The safest practical approach is to accept, develop quickly, and give the pawn back with ...d5 at the right moment to open lines for your own pieces.
If you prefer to avoid theory, 2...Bc5 is a sound way to decline: White cannot win the e5 pawn with fxe5 because of ...Qh4+, and the bishop stops White castling comfortably.
Frequently asked questions
Is the King's Gambit sound?
It is objectively a little worse for White with perfect play, but nowhere near refuted, and at club level the practical chances are excellent. Top players still use it occasionally as a surprise.
Should I accept the King's Gambit?
Accepting is the most testing reply. Take the pawn, keep your pieces active, and be ready to return it with ...d5 rather than clinging to it at the cost of development.
What is the best response to the King's Gambit?
The main recommendations are 2...exf4 followed by 3...d6 (the Fischer Defense) or 3...g5 against 3.Nf3, and the Falkbeer, 2...d5, for players who want to counterattack at once.