Open games & French

Philidor Defense

1.e4 e5 2.Nf3 d6

The Philidor Defense starts with 1.e4 e5 2.Nf3 d6 and is catalogued under ECO C41, in the open games & french half of the book. The catalog indexes 44 lines inside it, grouped into 38 named variations, and the position after those moves has 2 playable continuations 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
Philidor Defense: Nimzowitsch Variation
9 plies
Nimzowitsch Variation, Sokolsky Variation
9 plies
Nimzowitsch Variation, Rellstab Variation
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.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.Nf3

    Develops the king’s knight and attacks Black’s e5-pawn.

    Idea: Increase central pressure while getting ready to castle.

  4. 2d6

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

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

  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. 3Nf6

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

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

  7. 4.dxe5

    Captures the pawn on e5 and changes the local pawn or piece balance.

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

  8. 4Nxe4

    Captures the pawn on e4 and changes the local pawn or piece balance.

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

Book continuations

Waiting for Lichess game popularity.

2 moves

Named variations

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

14 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 Philidor Defense.