Coordinates
From HexWiki
The cells on the Hex board are referred to using coordinates of a letter and a number, e.g., a1 or c14. The letter usually gives the column, the a-column being at the left side of the board, and the number gives the row, row 1 being at the top side. A1 is an acute corner, having two adjacent cells. It is assumed that the first moving player is vertical, i.e., has to connect the rows 1 and n on an n×n board.