Teams place their ships by using 2, 3, and 4 pennies in the bottom of each cup in orthogonal lines.

The term "orthogonal line" often has a quite different meaning in the literature of modern art criticism.

A man is captured if the enemy places a piece adjacent to it on each side in an orthogonal line.

Many pieces can move any number of empty squares along a straight orthogonal or diagonal line, limited only by the edge of the board.

The more common one is a two-ended spearhead-like board with orthogonal and diagonal lines running through it.

The square grid only consist of orthogonal lines; there are no diagonal lines.

It is a hunt game played on a 5x5 square grid with only orthogonal lines.

One variant is simpler than the other with only orthogonal lines connecting the adjacent intersection points of the board.

The first is an orthogonal line passing through the corresponding Euler point to the chosen face.

The second is an orthogonal line passing through the centroid of the chosen face.