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

Area: 9.

Size: 3x3.

Is rectangular: yes.

Is convex: yes.

Holes: 0.

Order: 1.

Square order: 1.

Odd order: 1.

Prime rectangles: 1.

Smallest rectangle and smallest square and smallest odd rectangle (3x3):

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

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

Red number (*C*) - 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 | 1-2 | 3 | 4-5 | 6 |
---|---|---|---|---|

1-2 | 0 | |||

3 | 0 | 11P | ||

4-5 | 0 | 0 | 0 | |

6 | 0 | 11C | 0 | 11C |

N>0 | x | 3k | x | 3k |

Smallest prime reptile (9Ox2):

polyomino \ n² | 1² | 2² | 3² | 4² | 5² |
---|---|---|---|---|---|

O 9-omino | 1 | 1P | 1P | 1C | 1P |