Caissa Codex
A10

English Opening: Achilles-Omega Gambit

Chess diagram: English Opening: Achilles-Omega Gambit after 2. e4

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

26,937 games: White 41.4% / Draw 4.2% / Black 54.4%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
11,61412K
4,4454,445
4,1334,133
2,5702,570
2,0202,020
742742
519519
435435

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 23, 2026

Engine evaluation

−1.04 Black is better

Best play: 2... Nxe4 3. d3 Nf6 4. Nf3 g6 5. Nc3 Bg7 6. Be2 d5 7. d4

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

Overview

English Opening: Achilles-Omega Gambit (ECO A10, Flank Openings) is a gambit in the English Opening: Anglo-Indian Defense, reached after 1. c4 Nf6 2. e4 (2 moves).

In 26,937 rated Lichess games between players rated 1600 to 2500, White won 41.4%, Black 54.4% and 4.2% were drawn. Black's most played move here is 2…Nxe4, in 43% of those games.

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How to play against the English Opening: Achilles-Omega Gambit

The most played answer, 2…Nxe4, also scores best for Black: 61.8%, with Black winning 59.8% and White 36.3% of 12K games. Of the main answers, 2…g6 scores lowest: 52.0%. Stockfish's first choice is also 2…Nxe4.

Main answers: those played in at least 5% of these games. Score: Black'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 2. e4, the position after English Opening: Anglo-Indian Defense also goes on to:

Transpositions

This position is also reached from these lines, by another move order:

Cite this page

Caissa Codex. “English Opening: Achilles-Omega Gambit (A10)”. Lichess data as of 23 Oct 2026. https://chesscodex.org/openings/english-opening-achilles-omega-gambit

https://chesscodex.org/openings/english-opening-achilles-omega-gambit