Chessboard
In western chess the board has a square shape, with its side being divided into eight parts, resulting in a total of sixty-four squares. For variants, the total number of squares may range from nine to one hundred and twelve. Each individual square of the board can be identified using chess notation, which may be descriptive, algebraic, or numeric. For two-dimensional boards, each horizontal row of squares is called a rank, each vertical column of squares is called a file, and each oblique line of squares of the same colour is called a diagonal.
Chessboard-3