The 'U' Pentomino [
Le pentamino 'U'.
]
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
(
one can find a reference to this puzzle 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 05/31/2026 11:10:51 -CEST-)
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Copyright © Jean-François COLONNA, 2026-2026.
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![The 'U' Pentomino [Le pentamino 'U'. ]](image.jpg "The 'U' Pentomino [Le pentamino 'U'. ]")
