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.


I tetromino and T tetromino

Prime rectangles: 6.

Smallest rectangle tilings

Smallest rectangle (4x5):

Smallest square (8x8):

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
1-3
0
4
0
0
5
0
4
0
6
0
6
0
0
7
0
8
0
0
0
8
0
34
122
230
524
≥1000
9
0
80
0
0
0
≥1000
0
10
0
128
0
12
0
≥1000
0
≥1
11
0
184
0
0
0
≥1000
0
0
0
12
0
578
≥1000
≥1000
≥1000
≥1000
≥1000
≥1
≥1
≥1
13
0
≥1000
0
0
0
≥1000
0
0
0
≥1
0
14
0
≥1000
0
≥1000
0
≥1000
0
≥1
0
≥1
0
≥1
15
0
≥1000
0
0
0
≥1000
0
0
0
≥1
0
0
0
16
0
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
17
0
≥1
0
0
0
≥1
0
0
0
≥1
0
0
0
≥1
0
18
0
≥1
0
≥1
0
≥1
0
≥1
0
≥1
0
≥1
0
≥1
0
≥1
19
0
≥1
0
0
0
≥1
0
0
0
≥1
0
0
0
≥1
0
0
0
20
0
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
≥1
N>0
x
all
4k
2k
4k
all
4k
2k
4k
all
4k
2k
4k
?
?
?
?
?

See Also

I tetromino and O tetrominoI tetromino and Z tetromino