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.

Area: 5.

Perimeter: 12.

Size: 2x4.

Is rectangular: no.

Is convex: yes.

Holes: 0.

Prime rectangles: ≥ 0.

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

1-20

N>0

1-20

?

21

?

?

N>0

?

Smallest torus (2x5):

Smallest square torus (5x5):

Smallest known odd torus (5x5):

w \ h

1

2

3

4

5

6

7

8

9

10

1

0

2

0

0

3

0

0

0

4

0

0

0

0

5

0

0

6

0

0

0

0

0

7

0

0

0

0

0

0

8

0

0

0

0

0

0

0

9

0

0

0

0

0

0

0

0

10

0

Smallest Baiocchi figure (area 20):

Smallest known Baiocchi figure without holes (area 60):