ECO C39 · King's Gambit Accepted

King's Gambit Accepted: Allgaier Gambit

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5

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

5… h6−1.19

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the King's Gambit Accepted: Allgaier Gambit (C39), reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5, Stockfish 18 recommends 5… h6 for Black. Black is clearly better (−1.19).

Top engine moves

  1. −1.195… h6 6. Nxf7 Kxf7 7. d4 f3 8. gxf3 Be7 9. Bc4+ Kg7 10. Qd3
  2. −1.075… d5 6. d4 h6 7. Bb5+ c6 8. Nxf7 Kxf7 9. Bxf4 Nf6 10. O-O
  3. −0.885… f3 6. gxf3 h6 7. Nxf7 Kxf7 8. fxg4 d5 9. Nc3 Qd6 10. Qf3+

Variations

Frequently asked questions

What is the best move in the King's Gambit Accepted: Allgaier Gambit?
After 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5, Stockfish 18 at depth 18 recommends 5… h6 for Black, continuing 6. Nxf7 Kxf7 7. d4 f3 8. gxf3 Be7 9. Bc4+ Kg7 10. Qd3. Black is clearly better (−1.19). The next best moves are 5… d5 (−1.07) and 5… f3 (−0.88).
Is the King's Gambit Accepted: Allgaier Gambit a good opening?
Stockfish rates the position at −1.19: 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 King's Gambit Accepted: Allgaier Gambit?
C39. ECO codes classify chess openings from A00 to E99; C is the volume for open games and the French Defense.

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