A10

English Opening: Adorjan Defense

Chess diagram: English Opening: Adorjan Defense after 2…e5

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

18,638 games: White 48.5% / Draw 5.4% / Black 46.1%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
7,5717,571
5,4805,480
2,9842,984
722722
667667
285285
165165
143143

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

+0.10 The position is about equal

Best play: 3. d4 Nf6 4. Nf3 exd4 5. e5 Bb4+ 6. Bd2 Qe7 7. Bxb4 Qxb4+

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

Overview

English Opening: Adorjan Defense (ECO A10, Flank Openings) is a variation of the English Opening: Great Snake Variation, reached after 1. c4 g6 2. e4 e5 (2 moves).

In 18,638 rated Lichess games between players rated 1600 to 2500, White won 48.5%, Black 46.1% and 5.4% were drawn. White's most played move here is 3. Nc3, in 41% of those games.

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How to play against the English Opening: Adorjan Defense

The most played answer, 3. Nc3, also scores best for White: 52.9%, with White winning 50.3% and Black 44.5% of 7,571 games. Of the main answers, 3. Nf3 scores lowest: 50.2%. Stockfish's first choice is 3. 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

Transpositions

Cite this page

Caissa Codex. “English Opening: Adorjan Defense (A10)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/english-opening-adorjan-defense