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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h

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. 1e5

    Meets White’s center directly and opens lines for Black’s queen and bishop.

    Idea: Fight for equal central space in a balanced, open position.

  3. 2.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.

  4. 2exd4

    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.

  5. 3.Qxd4

    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.

  6. 3Nc6

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

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

  7. 4.Qe3

    Repositions the queen to e3, where it influences a new part of the board.

    Idea: Coordinate threats carefully while avoiding unnecessary tempi against the queen.

  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. 5Bb4

    Develops the bishop to b4, bringing it into the game.

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

  11. 6.Bd2

    Develops the bishop to d2, bringing it into the game.

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

  12. 6O-O

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

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

  13. 7.O-O-O

    Secures the king on the queenside and brings the rook toward the center.

    Idea: Connect the pieces quickly and prepare play on the opposite wing.

  14. 7Re8

    Repositions the rook to e8, where it influences a new part of the board.

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

  15. 8.Bc4

    Develops the bishop to c4, bringing it into the game.

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

  16. 8d6

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

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

  17. 9.Nh3

    Develops the knight to h3, bringing it into the game.

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

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.