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Openings

Opening principles

The starter rules: control the centre, develop pieces, castle early, don't move the queen out too soon.

The principles are shortcuts that keep you out of trouble before you know specific theory: occupy or control the centre with pawns and pieces, develop knights and bishops toward the centre, castle to safety, and connect your rooks.

They are guidelines, not laws — strong players break them for concrete reasons — but breaking them without a reason usually just loses time.

Why it matters

Following a handful of principles will get you a healthy middlegame in almost any opening, without memorising lines.

The mistake everyone makes

Chasing the opponent's pieces with early queen sorties and getting the queen kicked around, losing tempo after tempo.

Related terms

Development
Bringing your pieces off the back rank into active, useful positions.
The centre
The four central squares (d4, e4, d5, e5) and the fight to control them.
Castling
The one move where the king and a rook move together, tucking the king to safety.
Theory
The body of established, analysed best moves in known openings and standard endgames.

See Opening principles in your own games

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