A pentomino is a polygon made of five squares, each pair sharing a common side.
There are 12 different pentominos:
F
I
L
N
P
T
U
V
W
X
Y
Z
Using rotations and symmetries they can tile certain rectangles and, for example, there are 2339 ways of tiling a 6x10 one
(a reference to this puzzle can be found in Imperial Earth published by Arthur C. Clarke in 1975)!
(CMAP28 WWW site: this page was created on 05/30/2026 and last updated on 06/04/2026 23:21:38 -CEST-)
![The 'F' Pentomino [Le pentamino 'F'. ]](image.jpg "The 'F' Pentomino [Le pentamino 'F'. ]")
