POLYOMINO TILINGS

Polyomino Tilings

Select polyominoes for a set (currently 1 or 2), for which tilings should be shown.

Then click "Show" button.

You may also see list of all polyomino sets for which data is available here.


Z tetromino and C hexomino

Prime rectangles: ≥ 0.

Smallest rectangle tilings

Smallest known rectangle (4x5):

Smallest known square (20x20):

Rectangle tilings' solutions count (including symmetric)

Blue number - strongly prime rectangle (which cannot be divided into two or more number of rectangles tileable by this set).

Green number - weakly prime rectangle (which cannot be divided into two rectangles tileable by this set, but which can be divided into three or more rectangles).

Purple number - prime rectangle (unknown if weakly or strongly prime).

Red number - composite rectangle (which can be divided into two rectangles tileable by this set).

Gray number - it is unknown whether rectangle is prime or composite.

Question mark (?) - solution count is unknown.

Click on underlined numbers to view picture with one solution.

w \ h
1-3
4
5
6-7
8
9
10
11
12
13
14
15
16
17
18
19
20
N>0
1-3
?
4
?
?
5
?
≥1
?
6-7
?
?
?
?
8
?
?
≥1
?
?
9
?
?
?
?
?
?
10
?
≥1
?
?
≥1
?
?
11
?
?
?
?
?
?
?
?
12
?
?
≥1
?
?
?
≥1
?
?
13
?
?
?
?
?
?
?
?
?
?
14
?
?
?
?
?
?
?
?
?
?
?
15
?
≥1
?
?
≥1
?
?
?
≥1
?
?
?
16
?
?
≥1
?
?
?
≥1
?
?
?
?
≥1
?
17
?
?
?
?
?
?
?
?
?
?
?
?
?
?
18
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
19
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
20
?
≥1
≥1
?
≥1
≥1
≥1
?
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
21
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
≥1
?
N>0
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?
?

See Also

Z tetromino and B hexominoZ tetromino and D hexomino