Once in every game, each king is allowed to make a special move, known as castling.
From the en.wikipedia.org
The rook also participates, with the king, in a special move called castling.
From the en.wikipedia.org
Along with the king, the rook is involved during the king's castling move.
From the en.wikipedia.org
The modern castling rules were worked out only in 1561 by the Spanish priest Ruy Lopez.
From the washingtonpost.com
The king has also a special move which is called castling and involves also moving a rook.
From the en.wikipedia.org
Short was notably combative with the black pieces, here demolishing White's rash queen's side castling.
From the guardian.co.uk
Castling is a special move in chess that allows for the king's defense by sending a rook into battle.
From the en.wikipedia.org
Gelfand's provocative queen's side castling gave him a dangerous attack where both black rooks invaded Carlsen's defences.
From the guardian.co.uk
Castling is not a permissible response to a check.
From the en.wikipedia.org
More examples
Move the king two squares toward a rook and in the same move the rook to the square next past the king
Palace: a large and stately mansion
A large building formerly occupied by a ruler and fortified against attack
(chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
Interchanging the positions of the king and a rook
(castled) embattled: having or resembling repeated square indentations like those in a battlement; "a crenelated molding"
A castle (from Latin castellum) is a type of fortified structure built in Europe and the Middle East during the Middle Ages. Scholars debate the scope of the word castle, but usually consider it to be the private fortified residence of a lord or noble. ...
Castle is Sherman Chung's second album, released by EEG Emperor Entertainment Group in 2008.
Castle is a Caldecott Honor award-winning book by David Macaulay published in 1978.