King's Gambit Accepted: King's Knight's Gambit

Before the first move

The King's Gambit is one of the most aggressive openings in chess history. White sacrifices a pawn on move two to deflect your central pawn and open lines for an attack. In this variation, White uses an early h-pawn thrust to challenge your kingside structure and regain the initiative immediately.

1. e4White

White starts with e4, the most popular move in chess. By occupying the center, White prepares for rapid development. You have many ways to respond, such as the solid Caro-Kann or the sharp Sicilian Defense, but the symmetrical reply is most common.

1... e5Black · your move

Move your pawn to e5. By mirroring White's move, you stake your own claim in the center and prevent White from easily pushing a second pawn to d4. This leads to open games where tactical awareness is key.

Other paths here: f6 (Barnes Defense) · g5 (Borg Defense) · h6 (Carr Defense) · f5 (Duras Gambit)

2. f4White

White plays f4, the daring King's Gambit. You must decide whether to accept the challenge or decline it. While you can play the Falkbeer Counter-Gambit with d5 or the Classical Decline with Bc5, taking the pawn is the ultimate test.

Other paths here: Ke2 (Bongcloud Attack) · d4 (Center Game) · c4 (English Opening: The Whale) · Ne2 (King's Pawn Game: Alapin Opening)

2... exf4Black · your move

Capture the pawn on f4. By accepting the gambit, you challenge White to prove they have enough compensation for the material. You gain a pawn but must be ready to defend against White's incoming development.

Other paths here: Bc5 (King's Gambit Declined: Classical Variation) · Qh4+ (King's Gambit Declined: Keene's Defense) · Qf6 (King's Gambit Declined: Norwalde Variation) · f5 (King's Gambit Declined: Panteldakis Countergambit)

3. Nf3White

White plays Nf3, a vital developing move that stops you from checking the king on h4. White has avoided the wilder Bishop's Gambit or the Breyer Gambit, choosing instead to focus on controlling the center and preparing an eventual d4.

Other paths here: Qe2 (King's Gambit Accepted: Basman Gambit) · Bc4 (King's Gambit Accepted: Bishop's Gambit) · Qf3 (King's Gambit Accepted: Breyer Gambit) · Qh5 (King's Gambit Accepted: Carrera Gambit)

3... g5Black · your move

Push your g-pawn to g5. This move is the hallmark of the classical defense, reinforcing your extra pawn on f4. You are signaling that you intend to keep the material and challenge White's kingside pressure directly.

Other paths here: h6 (King's Gambit Accepted: Becker Defense) · Ne7 (King's Gambit Accepted: Bonsch-Osmolovsky Variation) · d6 (King's Gambit Accepted: Fischer Defense) · f5 (King's Gambit Accepted: Gianutio Countergambit)

4. h4White

White plays h4, a direct strike at your pawn chain. White is trying to break open the kingside before you can complete your development. You'll need to decide between pushing to g4 or looking for ways to maintain your pawn on f4.

Other paths here: Bc4 (King's Gambit Accepted: King's Knight's Gambit) · Nc3 (King's Gambit Accepted: Quaade Gambit) · d4 (King's Gambit Accepted: Rosentreter Gambit)

Where you stand

The position is highly volatile. Black usually pushes to g4, leading to the Kieseritzky or Allgaier Gambits. White aims to use the open f-file and central control to launch an attack, while Black tries to consolidate the extra pawn and survive the initial onslaught to reach a favorable endgame.

• g5-g4 Push to g4 to harass the knight
• f3-e5 Jump to e5 to dominate the center
• d2-d4 Occupy the center and free the bishop
• g8-f6 Develop the knight to challenge e4