Four Knights d4 Line

1.e4 e5 2.Nf3 Nf6 3.Nc3 Nc6 4.d4 exd4 5.Nxd4

White opens the center in Four Knights style and aims for active development. Black can equalize with accurate piece coordination and timely simplification.

ECO Code

C47

Difficulty

Intermediate

Style

Classical/Open

Key Theme

Central clarification

Practical Plans

White Plan

Nxc6, Bf4, Qd2

White can simplify favorably or keep pressure with active development.

Black Plan

...Bb4, ...0-0, ...Re8

Black develops with tempo and targets White's central pieces.

Key Point

Piece activity

In open structures, active squares matter more than small structural details.

Common Pitfalls

For White: Drifting in development can surrender the early initiative.

For Black: Passive replies can leave White with easy space and activity.

Open Four Knights Structure

This line is practical for players who prefer clear central play and active pieces.

Back to Petrov Defense Explore Symmetrical Bc4 Line