King's Gambit Declined
C30 · Played as black · Intermediate · Romantic Gambits
Refuse the pawn, aim the bishop at f2, and let White's own gambit backfire
The main line
1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.Nc3 Nf6 5.Bc4 Nc6 6.d3 Bg4 7.h3 Bxf3 8.Qxf3 Nd4 9.Qg3 Nxc2+
Strategic ideas
- Decline the pawn and develop — White's f4 has already weakened the king
- Point the bishop at f2 and the a7–g1 diagonal, which f4 opened for free
- Keep the centre closed with …d6 so White's open f-file leads nowhere
- Use the g1–a7 diagonal and the e3 square as permanent operating bases
- Punish greedy play with the …Nd4 and …Nxc2 fork tricks that the loose queen invites
Key themes
- Counterattack — Black doesn't defend against the gambit — the pieces immediately point back at White's weakened king
- Piece Activity — The c5-bishop, the g4-pin and the d4-outpost give Black active play from move three
- King Safety — f4 loosened the white king's cover permanently, and that's the flaw Black plays against
Typical plans
The simplest antidote to the King's Gambit: don't take. Black plays …Bc5, and the bishop now stares down a diagonal that White's own f4 opened. White can't castle comfortably, the e3 square is a hole, and the whole romantic attacking plan has no target because Black's centre never moved. It's not a refutation — White is fine — but it takes all the fun out of the position for the gambiteer, which at club level is worth a great deal.
Move by move
- e4 — White claims the centre.
- e5 — Black meets it symmetrically.
- f4 — White offers the King's Gambit, hoping for a nineteenth-century brawl.
- Bc5 — Black declines. The bishop takes the diagonal White just opened by pushing the f-pawn — and now that pawn is a weakness, not a weapon.
- Nf3 — White develops and stops …Qh4+.
- d6 — Black shores up e5 and opens the c8-bishop. The centre stays closed, so White's f-file has nothing to hit.
- Nc3 — White develops and defends e4.
- Nf6 — Black develops and hits e4.
- Bc4 — White develops toward f7.
- Nc6 — Black develops, adding another defender to e5.
- d3 — White props up e4 and gives the c1-bishop some air.
- Bg4 — Black pins the knight, adding pressure to a kingside that f4 already weakened.
- h3 — White kicks the bishop, asking it to declare.
- Bxf3 — Black trades on f3, damaging White's structure and opening the g-file toward the king.
- Qxf3 — White recaptures with the queen — recapturing with the g-pawn shatters the kingside completely.
- Nd4 — Black jumps to d4 with tempo, hitting the queen and eyeing c2.
- Qg3 — White sidesteps, keeping the queen active but leaving c2 undefended.
- Nxc2+ — Black forks the king and the a1-rook. This is the King's Gambit backfiring exactly the way it's supposed to when White plays on autopilot.