Castling is an unusual move in chess. The purpose of castling is to place the King in a safe place away from the ferocity of battle. The motion of castling involves the Rook and the King.
When you castle, you secure the King and simultaneously, activate your Rook to enter the field of battle. The name “castling” seems to have originated from the Rook’s resemblance to a turret, which is a tower typically found on a medieval castle.
When I learned to play chess, I was advised to castle early in the game. Every textbook I read, suggested that I should castle early. Over the years, I have found that chess masters, grandmasters, and world champions castle. Diagram 1 demonstrates how castling should be done. You can castle Kingside or Queenside.