This may be referred to as an $m \times n$ chessboard, where:
For the conventional chessboard, as depicted above, $m = n = 8$.
It is identified by number:
It is identified by letter:
- $\text a$ is the file on the edge of the board to the left of white (that is, to the right of black)
- The files are lettered sequentially up to the file on the edge of the board to the left of black (that is, to the right of white).
They are conventionally identified by a letter-number pair, where: