The center is the busy crossroads of the board. Control it and your pieces breathe better.

Development means bringing pieces into the game. A piece stuck at home is not helping, even if it looks comfortable.

Castling early prevents many small disasters. A king in the center for too long is basically a public invitation.

In the opening, avoid moving the same piece again and again. Every move is a chance to bring someone new into the game.

Bringing the queen out early is tempting. The problem is that your opponent can attack her while developing useful pieces.

Once the minor pieces are out and the king has castled, the rooks can finally see each other. Connected rooks work much better.