King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation

King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation is a gambit, classified under ECO code C39 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.

It is reached after 15 plies of play, with the move sequence 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3.

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

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.