Chess Rules IX - Exceptions in the movement of the pieces - Castle

Castling is the only movement where it is possible to move two pieces in the same move, the King and the Rook. this move allows to place the King more near to one of the corners of the board, where it will be more protected.

The movement consists in moving the King two squares for one side and pass the Rook for the square immediately situated in the opposite side. The castle can be made to the King side (Castling King side) or the Queen side (Castling Queen side).

There are some rules to Castle:

1. The King and the Rook must be at his initial position;


2. None of the two can already have moved;


3. There cannot be pieces between both;


4. The King cannot be in Check, pass or be at a square that is being attacked;

Castling King side:

Castling Queen side:

Cases in which it is not possible to Castle:

The white King is in Check

white King cannot Castle since it would be going to be placed at a square that is being attacked by the adversary's

Both Kings moved already, because they cannot Castle