ECO C39 · King's Gambit Accepted

King's Gambit Accepted: Allgaier, Schlechter Defense

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6

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

6. e5−0.36

Black is slightly better. Stockfish 18, depth 18.

Analyze this position

In the King's Gambit Accepted: Allgaier, Schlechter Defense (C39), reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6, Stockfish 18 recommends 6. e5 for White. Black is slightly better (−0.36).

Top engine moves

  1. −0.366. e5 d5 7. exf6 Bd6 8. Bd3 Qxf6 9. Nc3 c6 10. Bxh7 Qg7
  2. −1.076. Nc3 h6 7. Nxf7 Kxf7 8. d4 d5 9. Bxf4 Kg7 10. Bb5 dxe4
  3. −1.076. d4 h6 7. Nxf7 Kxf7 8. Bxf4 d5 9. Nc3 Kg7 10. Bb5 dxe4

Frequently asked questions

What is the best move in the King's Gambit Accepted: Allgaier, Schlechter Defense?
After 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 Nf6, Stockfish 18 at depth 18 recommends 6. e5 for White, continuing d5 7. exf6 Bd6 8. Bd3 Qxf6 9. Nc3 c6 10. Bxh7 Qg7. Black is slightly better (−0.36). The next best moves are 6. Nc3 (−1.07) and 6. d4 (−1.07).
Is the King's Gambit Accepted: Allgaier, Schlechter Defense a good opening?
Stockfish rates the position at −0.36: black is slightly 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, Schlechter Defense?
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+).