Caissa Codex
C39

King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense

Chess diagram: King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense after 5…Nc6

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Statistics from Lichess

3,440 games: White 42.9% / Draw 4.5% / Black 52.6%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
2,9162,916
206206
159159
126126
1717
88
33
22

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 6, 2026

Engine evaluation

−0.09 The position is about equal

Best play: 6. d4 Qf6 7. Nc3 Nxe5 8. dxe5 Qxe5 9. Qxg4 Bh6 10. Qf3 d6

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense (ECO C39, Open Games) is a gambit in the King's Gambit Accepted: Kieseritzky Gambit, reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nc6 (5 moves).

In 3,440 rated Lichess games between players rated 1600 to 2500, White won 42.9%, Black 52.6% and 4.5% were drawn. White's most played move here is 6. Nxg4, in 85% of those games.

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How to play against the King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense

6. d4 scores best for White: 71.8%, with White winning 68.9% and Black 25.2% of 206 games. The most played answer, 6. Nxg4, scores lowest: 43.9% in 2,916 games. Stockfish's first choice is also 6. d4.

Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Other lines from the same position

Instead of 5…Nc6, the position after King's Gambit Accepted: Kieseritzky Gambit also goes on to:

Cite this page

Caissa Codex. “King's Gambit Accepted: Kieseritzky Gambit, Neumann Defense (C39)”. Lichess data as of 6 Nov 2026. https://chesscodex.org/openings/kings-gambit-accepted-kieseritzky-gambit-neumann-defense

https://chesscodex.org/openings/kings-gambit-accepted-kieseritzky-gambit-neumann-defense