Rook (chess) of a fifth daughter. Unicode defines two codepoints for rook: ♖ U+2656 White Chess Rook (HTML ♖) ♜ U+265C Black Chess Rook (HTML ♜) Rook (chess) A rook (; ♖,♜) is a piece in the strategy board game of chess. Formerly the piece (from Persian رخ "rokh"/"rukh") was called the "tower", "marquess", "rector", and "comes" . The term "castle" is considered informal, incorrect, or old-fashioned. Each player starts the game with two rooks, one on each of the corner squares on their own side of the board. The white rooks start on squares a1 and h1, while the black rooks
Three-dimensional chess by squares and often called "cells") alternate in color in all three dimensions. The horizontal levels are denoted by capital letters A through E. Ranks and files of a level are denoted using algebraic notation. White starts on the A and B levels and Black starts on E and D. White moves first. The game objective, as in standard chess, is checkmate. Rooks, bishops, and knights move as they do in chess in any given plane. Probably the most familiar 3D chess variant to the general public is the game of Tri-Dimensional Chess (or Tri-D Chess), which can be seen