ECO C39 · King's Gambit Accepted

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

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3

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

8… d6+0.96

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation (C39), reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3, Stockfish 18 recommends 8… d6 for Black. White is clearly better (+0.96).

Top engine moves

  1. +0.968… d6 9. Nd3 f3 10. gxf3 c6 11. Bb3 gxf3 12. Bxh6 Nxh6 13. Qxf3
  2. +1.198… f3 9. gxf3 d6 10. Bxh6 Nxh6 11. Nd3 c6 12. Nf4 gxf3 13. Qxf3
  3. +1.548… Nc6 9. Nxf7 Rxf7 10. Bxf7+ Kxf7 11. Bxf4 Bxf4 12. O-O Kg7 13. Rxf4

Frequently asked questions

What is the best move in the King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation?
After 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 h5 6. Bc4 Rh7 7. d4 Bh6 8. Nc3, Stockfish 18 at depth 18 recommends 8… d6 for Black, continuing 9. Nd3 f3 10. gxf3 c6 11. Bb3 gxf3 12. Bxh6 Nxh6 13. Qxf3. White is clearly better (+0.96). The next best moves are 8… f3 (+1.19) and 8… Nc6 (+1.54).
Is the King's Gambit Accepted: Kieseritzky, Long Whip Defense, Jaenisch Variation a good opening?
Stockfish rates the position at +0.96: white 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: Kieseritzky, Long Whip Defense, Jaenisch Variation?
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+).