Difference between revisions of "Pentomino"

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(→‎Chiral: can we get a ruling on what we should call these?)
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.SS....ZZ.
.SS....ZZ.
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J........L
J........L
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Revision as of 23:36, 19 January 2019

A pentomino is a polyomino of five squares.

The ancient pentomino puzzle uses free pentominoes. The recent iPhone game Twinflix mostly uses pentominos in its gameplay.

The shapes

There are 12 free pentominoes. Six of them are chiral, making a total of 18 one-sided pentominoes.

Symmetric

..........
..IIIII...
..........

I

...TTT....
....T.....
....T.....

T

...G.G....
...GGG....
..........

U

...L......
...L......
...LLL....

V

...Z......
...ZZ.....
....ZZ....

W

....T.....
...TTT....
....T.....

X

Chiral

These come in mirrored pairs:

.J......L.
.JJJ..LLL.
..J....L..

F

..SS..ZZ..
..S....Z..
.SS....ZZ.

Z

J........L
JJJJ..LLLL
..........

L

.I......I.
IIII..IIII
..........

Y

..SS..ZZ..
SSS....ZZZ
..........

N

.OO....OO.
.OOO..OOO.
..........

P

Official games that use pentominoes

Incomplete.

Non-official games that use pentominoes

Very incomplete.

External links