ECO A20 · English Opening

English Opening: King's English Variation, Kahiko-Hula Gambit

1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3

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Black to move. The arrow shows Stockfish’s best move.
Best move

4… fxe3−1.10

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the English Opening: King's English Variation, Kahiko-Hula Gambit (A20), reached after 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3, Stockfish 18 recommends 4… fxe3 for Black. Black is clearly better (−1.10).

Top engine moves

  1. −1.104… fxe3 5. d4 Bd6 6. Nc3 O-O 7. Bd3 Bf4 8. O-O Bh6 9. Qe1
  2. −0.964… d5 5. cxd5 fxe3 6. Bc4 Bd6 7. dxe3 O-O 8. Nc3 Bg4 9. O-O
  3. −0.904… Nc6 5. d4 d5 6. Nc3 fxe3 7. Bxe3 Qe7 8. Qd2 Be6 9. O-O-O

Frequently asked questions

What is the best move in the English Opening: King's English Variation, Kahiko-Hula Gambit?
After 1. c4 e5 2. e3 Nf6 3. f4 exf4 4. Nf3, Stockfish 18 at depth 18 recommends 4… fxe3 for Black, continuing 5. d4 Bd6 6. Nc3 O-O 7. Bd3 Bf4 8. O-O Bh6 9. Qe1. Black is clearly better (−1.10). The next best moves are 4… d5 (−0.96) and 4… Nc6 (−0.90).
Is the English Opening: King's English Variation, Kahiko-Hula Gambit a good opening?
Stockfish rates the position at −1.10: black is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the English Opening: King's English Variation, Kahiko-Hula Gambit?
A20. ECO codes classify chess openings from A00 to E99; A is the volume for flank openings.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).