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1. Having or resembling repeated square indentations like those in a battlement
   "Even the castled position may become fatal to the defender's King";
   - embattled, battlemented, castellated

1. (chess) move the king two squares toward a rook and in the same move the rook to the square next past the king

See also: fancy

Type of: go, move

Encyclopedia: Castle, Cambridge Castle, Newcastle upon Tyne Castle Castle, Bedford Castle, Swansea Castle, The Castle, OK Castle, Oklahoma