Other polyomino
This page lists polyominoes that do not fall in any other classes, that is, polyominoes that are neither semiconvex nor directed. The smallest polyominoes that are neither semiconvex nor directed are octominoes.
This page lists polyominoes that do not fall in any other classes, that is, polyominoes that are neither semiconvex nor directed. The smallest polyominoes that are neither semiconvex nor directed are octominoes.