Caissa Codex
C39

King's Gambit Accepted: Allgaier, Cook Variation

Chess diagram: King's Gambit Accepted: Allgaier, Cook Variation after 10. Be5+

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Statistics from Lichess

284 games: White 47.2% / Draw 3.2% / Black 49.6%

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Next moveGamesWhite / Draw / BlackW / D / B
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Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 30, 2026

Engine evaluation

−3.92 Black is clearly better

Best play: 10... Nf6 11. O-O Be7 12. Nd2 Nc6 13. c3 Re8 14. Nb3 Rf8 15. Qe2

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

Overview

King's Gambit Accepted: Allgaier, Cook Variation (ECO C39, Open Games) is a gambit in the King's Gambit Accepted: Allgaier Gambit, Thorold Attack, reached after 1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5 h6 6. Nxf7 Kxf7 7. d4 d5 8. Bxf4 dxe4 9. Bc4+ Kg7 10. Be5+ (10 moves).

In 284 rated Lichess games between players rated 1600 to 2500, White won 47.2%, Black 49.6% and 3.2% were drawn. Black's most played move here is 10…Nf6, in 89% of those games.

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Cite this page

Caissa Codex. “King's Gambit Accepted: Allgaier, Cook Variation (C39)”. Lichess data as of 30 Oct 2026. https://chesscodex.org/openings/kings-gambit-accepted-allgaier-cook-variation

https://chesscodex.org/openings/kings-gambit-accepted-allgaier-cook-variation