Flank openings

English Opening

1.c4

The English Opening starts with 1.c4 and is catalogued under ECO A10, in the flank openings half of the book. The catalog indexes 175 lines inside it, grouped into 127 named variations, and the position after those moves has 1 playable continuation to walk from here.

Opening repertoire map

Root edges show how often each move is played around your Elo. Use the arrow on a position to reveal the next replies.

Current position
English Opening: King's English Variation, Four Knights Variation, Fianchetto Line
Popularity by Elo
Share of Lichess blitz, rapid, and classical games that continued with each move.
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Current setup

Move ideas

  1. 1.c4

    Controls d5 from the flank without occupying the center immediately.

    Idea: Pressure the center from the side and keep the pawn structure flexible.

  2. 1e5

    Advances to e5 to claim central space and control nearby key squares.

    Idea: Give the pieces room to develop behind a durable central foothold.

  3. 2.g3

    Advances the g-pawn to gain kingside space and control new squares.

    Idea: Create useful wing space while keeping the central structure flexible.

  4. 2Nf6

    Develops the knight to f6, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  5. 3.Bg2

    Develops the bishop to g2, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  6. 3d5

    Advances to d5 to claim central space and control nearby key squares.

    Idea: Give the pieces room to develop behind a durable central foothold.

  7. 4.cxd5

    Captures the pawn on d5 and changes the local pawn or piece balance.

    Idea: Open lines in the center and reshape the center for the next phase.

  8. 4Nxd5

    Captures the pawn on d5 and changes the local pawn or piece balance.

    Idea: Remove an active defender and improve the moving piece’s influence.

  9. 5.Nf3

    Develops the knight to f3, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  10. 5Nc6

    Develops the knight to c6, bringing it into the game.

    Idea: Improve piece coordination and clear the back rank for castling and the rooks.

  11. 6.d3

    Advances to d3 to claim central space and control nearby key squares.

    Idea: Give the pieces room to develop behind a durable central foothold.

Book continuations

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1 move

Named variations

Each line below is an indexed entry under English Opening. Open one to load it on the board and keep exploring from that position.

103 more named lines sit inside this family — the tree above walks all of them.

ECO groups openings by the structures they lead to, so these families tend to share plans with the English Opening.