A geometric shape comprised of five (greek pente) identical squares. Compare to domino (two squares), or tetromino (four squares). |
A geometric shape comprised of five (greek pente) identical squares, connected orthogonally. Compare to a domino (two squares), tetromino (four squares), or polyomino? (any number of squares). |
A standard pentomino puzzle is to arrange a set of the twelve possible shapes into a rectangles without holes: 3x20, 4x15, 5x12, 6x10.
The shapes look like this:
_ _ _ _ _ |_|_|_|_|_|
_ _ _ _ _ _ _ _ |_|_|_|_| |_|_|_|_| |_| |_|
_ _ _ _ _ _ |_|_|_|_ _|_|_|_| |_|_| |_|_|
_ _ _ _ _ _ |_|_|_| |_|_|_| |_|_| |_|_|
_ _ |_|_ _ _ _|_| |_|_|_| |_|_|_| |_| |_|
_ _ _ |_|_|_| |_| |_|
_ |_|_ _ |_|_|_| |_|
_ _|_|_ |_|_|_| |_|