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

King's Gambit Accepted: King's Knight's Gambit is a gambit, classified under ECO code C34 within the Open Games family. As with all gambits, one side sacrifices material early — usually a pawn — in exchange for development, open lines, or initiative.

The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.

Play reaches this position via 1. e4 e5 2. f4 exf4 3. Nf3, after 5 plies of opening development.

It is a variation of King's Gambit Accepted, which itself descends from the root opening King's Pawn Game.

It is the root of 10 named variations, with King's Gambit Accepted: Becker Defense, King's Gambit Accepted: Bonsch-Osmolovsky Variation, King's Gambit Accepted: Cunningham Defense, and others among the most studied.

Below the direct variations, the full subtree contains 91 documented sub-variations.

Step through the moves on the interactive board below, review the live Lichess statistics, or play this position against Stockfish at one of six difficulty levels.