Semi-open games

King's Pawn Game

1.e4

The King's Pawn Game starts with 1.e4 and is catalogued under ECO B00, in the semi-open games half of the book. The catalog indexes 38 lines inside it, grouped into 35 named variations.

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Current setup

Move ideas

  1. 1.e4

    Claims the center with a pawn and opens lines for the queen and king’s bishop.

    Idea: Build quick development and make early castling possible.

  2. 1c5

    Challenges d4 from the flank instead of mirroring White’s e-pawn.

    Idea: Create an unbalanced center and active queenside counterplay.

  3. 2.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.

  4. 2g6

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

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

  5. 3.d4

    Advances to d4 to claim central space and control nearby key squares.

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

  6. 3cxd4

    Captures the pawn on d4 and changes the local pawn or piece balance.

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

  7. 4.Nxd4

    Captures the pawn on d4 and changes the local pawn or piece balance.

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

  8. 4Nf6

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

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

  9. 5.Nc3

    Develops the knight to c3, bringing it into the game.

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

  10. 5d6

    Advances to d6 to claim central space and control nearby key squares.

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

  11. 6.Be2

    Develops the bishop to e2, bringing it into the game.

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

  12. 6Bg7

    Develops the bishop to g7, bringing it into the game.

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

  13. 7.O-O

    Tucks the king away and activates the rook in a single move.

    Idea: Finish kingside development so the central pieces can coordinate safely.

  14. 7O-O

    Tucks the king away and activates the rook in a single move.

    Idea: Finish kingside development so the central pieces can coordinate safely.

  15. 8.Be3

    Develops the bishop to e3, bringing it into the game.

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

  16. 8Nc6

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

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

  17. 9.Nb3

    Repositions the knight to b3, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

  18. 9Be6

    Develops the bishop to e6, bringing it into the game.

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

  19. 10.f4

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

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

  20. 10Na5

    Repositions the knight to a5, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

  21. 11.f5

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

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

  22. 11Bc4

    Repositions the bishop to c4, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

  23. 12.Bd3

    Repositions the bishop to d3, where it influences a new part of the board.

    Idea: Improve the piece’s activity and support the next stage of the plan.

  24. 12Bxd3

    Captures the bishop on d3 and changes the local pawn or piece balance.

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

  25. 13.cxd3

    Captures the bishop on d3 and changes the local pawn or piece balance.

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

  26. 13d5

    Advances to d5 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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0 moves
This is the end of the indexed line.

Named variations

Each line below is an indexed entry under King's Pawn Game. Open one to load it on the board and keep exploring from that position.

11 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 King's Pawn Game.