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During castling, the king is shifted two squares toward a rook of the same color on the same rank, and the rook is transferred to the square crossed by the king. There are two forms of castling: [4] Castling kingside (short castling) consists of moving the king to g1 and the rook to f1 for White, or moving the king to g8 and the rook to f8 for ...
The king and rook involved in castling must not have previously moved; There must be no pieces between the king and the rook; The king may not currently be under attack, nor may the king pass through or end up in a square that is under attack by an enemy piece (though the rook is permitted to be under attack and to pass over an attacked square);
Castling, derived from the "king's leap", usually in combination with a pawn or rook move to bring the king to safety, was introduced. These new rules quickly spread throughout Western Europe. Writings about chess theory began to appear in the late 15th century.
Castling with the h-file rook is known as castling kingside or short castling (denoted 0-0 in algebraic notation), while castling with the a-file rook is known as castling queenside or long castling (denoted 0-0-0).
It is the only time two pieces are moved in a turn. Castling can be done on either the kingside (notated 0-0) or the queenside (0-0-0). Castling cannot be done in reply to a check, nor if the king were to cross or land on a square which is under attack by the opponent, nor if either the king or the rook involved has already moved. [67] [68]
Anti-King chess: Features an anti-king. The anti-king moves in the same way as a king. This piece is in check when not attacked. If a player's anti-king is in check and unable to move to a square attacked by the opponent, the player loses (checkmate). The anti-king cannot capture enemy pieces, but can capture friendly pieces.
Castling is a king move, so the king must be touched first. If the rook is touched first instead, a rook move must be made. [b] If the player touches a rook at the same time as touching the king, the player must castle with that rook if it is legal to do so. If the player completes a two-square king move without touching a rook, the player must ...
5. The king does not end in a square that is under attack by an enemy piece. Moving the queen – queen can move like a rook or like a bishop (horizontally, vertically, or diagonally), but no castling. Moving the king – king may move one square in any direction, but may not move into check. It may also make a special move called "castling ...