1. e4 e5 2. f4 exf4 3. Nf3
The King’s Gambit is a chess opening for White that begins 1. e4 e5 2. f4. White offers the f-pawn to deflect Black’s e5-pawn, open the f-file for the rook, and seize the full center with a later d4. Unlike the Vienna Gambit, which prepares f4 with 2. Nc3 first, the King’s Gambit throws the pawn forward immediately — the most direct attacking statement in chess. Modern engines consider it objectively risky, but at club level it remains one of the most dangerous practical weapons White can pick up.
The gambit appears after 1. e4 e5 2. f4. Black’s principled reply is to accept with 2... exf4, when White’s main move is 3. Nf3 — the King’s Knight Gambit — stopping the immediate 3... Qh4+ and preparing d4 and Bc4. The sharper 3. Bc4, the Bishop’s Gambit, allows the queen check and is a separate animal. Black can also decline: 2... Bc5 keeps the bishop trained on the weakened g1–a7 diagonal (note that 3. fxe5? loses material to 3... Qh4+), and 2... d5, the Falkbeer Countergambit, strikes back in the center instead of grabbing the pawn. This course builds White’s repertoire on the main accepted move order with 3. Nf3.
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Nh6 7. d4 d6 8. Nd3
Black grabs the pawn and defends it with ...g5; White immediately undermines the chain with 4. h4. After 4... g4 the knight leaps to e5 — the Kieseritzky, the historical main line of the whole opening. White hits f7 and g4, builds the center with d4, and after the knight retreats to d3 simply regains f4 with a strong center and the safer king, since Black’s g- and h-pawns have already advanced.
1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 f6 5. Nxg5 fxg5 6. Qh5+ Ke7 7. Qxg5+ Nf6 8. e5
Defending g5 with 4... f6 looks natural and loses by force: 5. Nxg5! sacrifices the knight, and after 5... fxg5 6. Qh5+ the Black king is dragged to e7 because 6... Ke7 is forced — it is Black’s only legal move. White wins the g5-pawn back with check and keeps a raging attack against the stranded king — 8. e5 hits the blockading knight and rips the position open.
1. e4 e5 2. f4 exf4 3. Nf3 d6 4. d4 Bg4 5. Bxf4 Bxf3 6. Qxf3
With 3... d6 Black keeps the option of ...g5 while ruling out Ne5 ideas — the defense Bobby Fischer recommended in his 1961 article "A Bust to the King’s Gambit." White responds classically: build the full center with d4, take the f4-pawn back with the bishop, and welcome 4... Bg4, since after the trade on f3 White holds the bishop pair, a big center, and the half-open f-file pointing at f7.
1. e4 e5 2. f4 exf4 3. Nf3 d5 4. exd5 Qxd5 5. Nc3 Qe6+ 6. Be2 Bd6 7. O-O Nf6 8. Bb5+ Bd7 9. Re1
Black returns the pawn immediately with 3... d5 — the defense engines like best, trading the extra pawn for clean development and an unweakened structure. White accepts the trade-off: gain time on the queen with Nc3, castle quickly, and use the e-file. After 8. Bb5+ Bd7 9. Re1 the exposed queen on e6 becomes a target, and White regains f4 with active pieces rather than chasing a material edge.
Facing the King’s Gambit as Black, the first decision is whether to keep the pawn or give it back — and the calmest path to a good game is giving it back. After 2... exf4 3. Nf3, the move 3... d5 returns the pawn on the spot: White recaptures on d5, Black develops smoothly, and the weakening of White’s kingside is the only long-term feature left in the position. Engines consider this the cleanest equalizer. Fischer’s 3... d6 is the patient alternative — it prepares ...g5 under better conditions by stopping Ne5, and avoids the razor-sharp forcing lines. Holding the pawn with 3... g5 is the most ambitious choice and also the most dangerous: it scores well for booked-up defenders, but one natural-looking slip like 4. h4 f6? loses by force, so do not play it on general principles. Declining is also respectable: 2... Bc5 keeps the position sane and exploits the g1–a7 diagonal (White cannot even take the pawn, as 3. fxe5? runs into 3... Qh4+), while the Falkbeer with 2... d5 fights for the initiative immediately. Whatever you choose, remember the gambit’s real currency is time and the f-file — neutralize the attack with quick development and king safety, and the structural cost of f4 starts working for you.
Play for the initiative, not the pawn count. Develop with Nf3, Bc4 and d4, recapture on f4 when it comes with tempo, castle short and pile rooks on the half-open f-file against f7. Against greedy ...g5 setups, strike with h4 to break the pawn chain before it stabilizes. Trade pieces only when it exposes Black’s king — in quiet positions the missing f-pawn is a weakness, so keep the position sharp.
Return the extra pawn for development with ...d5, or hold it only with concrete preparation. Develop fast, castle early, and aim pieces at White’s loosened king — the e1–h4 diagonal and the e-file are the natural targets once f2 is gone. Avoid pawn-grabbing detours; every tempo you give White converts directly into attack. Reaching a calm equal middlegame is already a small victory against this opening.
The King’s Gambit is one of the oldest recorded chess openings, analyzed in chess literature for centuries, and it defined the romantic era of the 1800s, when accepting every sacrifice was a point of honor. The most famous game of that era — the "Immortal Game," Anderssen versus Kieseritzky, London 1851 — was a King’s Gambit. As defensive technique improved, the opening faded from top-level play, and Bobby Fischer famously declared it busted in his 1961 article recommending 3... d6 — a year after Boris Spassky had beaten him with it. Engines later confirmed the sober verdict: with best play Black is fine. Yet the gambit never died. It survives as a surprise weapon at every level, because its problems demand precision that practical opponents rarely deliver over the board.
Let's play the King's Gambit.
Let's learn the King's Gambit! On move 2 we'll shoot ourselves in the foot by giving away a pawn and weakening our king - but if Black doesn't know all the tricks and traps it will be us who is victorious (and suffering from an injured foot). We begin with pawn to e4.
Let's continue with the King's Gambit.
Now here comes the gambit. We're going to give away our f-pawn. Pawn to f4.
What's the best move?
They took our gambit! Now, before we can do anything else, we need to protect against Black's very annoying threat of queen to h4. We can defend against it with knight to f3.
What's the best move?
That's a nice move by Black, defending the f4 pawn and also threatening to move their pawn to g5 and kick out our knight. I don't like them having such a good pawn. Let's attack it right away and say "hey, make a decision". Pawn to h4.
Black chose to defend their pawn - and they made the wrong choice! Now we have the beautiful sacrifice: knight to g5.
There is a beautiful diagonal just calling our queen's name! Queen to h5 check.
Black is in for a rough time. Queen takes g5 check.
King goes back to e8? Queen should go back to h5.
And now we have the always nice queen to e5 check, forking the king and rook.
We could just straight up win the rook, but even better is bishop to c4, checking the king once again.
You probably have a forced checkmate here. At minimum you end up gobbling a few pieces and leaving their king stranded in the center of the board. Game is as good as over.
This is a nice try by Black but its not enough. Pawn to e5 and they are still miserable.
Um, ok? Queen takes bishop on g7.
You definitely got it from here.
That's a free queen! Queen takes d8.
Job well done.
OK well we should probably move the knight. Knight to e5. This puts a double attack on the g4 pawn.
This is a weak defense from Black. Sure, they saved their g4 pawn, but now we have bishop to c4 - and who will defend their f7 pawn?
Lets play pawn to d4, owning the center and threatening the f4 pawn with our bishop.
Very common response from Black, trying to kick out our knight. We'll oblige. Knight to d3 attacking the f4 pawn.
Black is threatening our pawn on d4. We can defend it while winning back a pawn in one move. Can you find it? Hint: knight takes f4, opening up our queen.
We're doing great here! The material is equal but the computer loves our position.
Instead of immediately defending their f-pawn, Black is taking their time and protecting the e5 square so our knight can't hop to it in the future. In this position we should take the center with pawn to d4.
Mistake from black! They totally forgot about their hanging pawn. Let's take with bishop f4.
Now Black is sending their only developed piece out to die! Obviously we take back, and it's best to take back with the queen. Queen to f3.
Beautiful! We are ahead in development and have the entire center.
It is objectively risky but practically strong. Engines give Black equality or a small edge with precise defense, yet at club level the gambit’s open lines and attacking chances win far more games than the evaluation suggests — especially against opponents who have never studied it.
No. Bobby Fischer claimed a "bust" in 1961 with 3... d6, and engines confirm Black can equalize, but equal is not refuted. White gets real attacking chances in every main line, and many defenses require Black to find only-moves to stay safe.
Accepting with 2... exf4 and then returning the pawn with 3... d5 is the cleanest engine-approved path: Black develops easily while White’s kingside stays loose. Fischer’s 3... d6 and declining with 2... Bc5 are also fully reliable.
Accepting with 2... exf4 is the principled test and the move most theory revolves around. Declining with 2... Bc5 or countering with 2... d5 (the Falkbeer) are sound ways to avoid White’s preparation, at the cost of letting White keep a stable center.
Yes, with one caveat: it rewards study. The opening teaches initiative, open lines and attacking the king — exactly the skills improving players need — but its sharpest lines punish vague play on both sides, so drill the concrete sequences rather than winging it.
Reading about an opening is step one. The trainer at the top of this page drills all 22 lines against the moves real opponents play — the first lines are free.
Train the King's Gambit now