On the board there are oblique lines like the 'e-line' or the '5-line'. A square is identified as the intersection of two lines. The 1- and 0-line each count but one square.

A non capturing move always keeps a particular line. The index change on that line is sufficient to indicate the move. Thus f45 and gf5 indicate moves of a white man or any king, while d25 and he6 indicate moves of a white line of men or any king.

A linear capture also keeps a particular line. Here the capture sign 'x' comes in between the indices, for instance hxe5 or g3x5.

A multiple piece-capture does not necessarily keep a particular line and may end on the square of origin. The 'x' sign now comes after the indices, for instance e8h6x, ef8x or f6x.