In Castling, the King must be moved first, or before the Rook is quitted. If the Rook be quitted before the King is touched, the opposing player may demand that the move of the Rook shall stand without the Castling being completed.

Many persons have been confused and discouraged at the very outset of the study by the great variety and the delicate distinctions of the openings: and this has constituted a fault in many otherwise excellent manuals for the learner.

It is the duty of the Umpire to determine all questions submitted to him according to these laws, when they apply, and according to his best judgment when they do not apply.

Howard Staunton Quotes