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Polyominoes are figures created by attaching multiple squares edge-to-edge. They are sorted based upon the number of squares they have.

Henominoes Edit

Henominoes
There is a single henomino, consisting of one square by itself.

Dominoes Edit

Dominoes
There is a single domino, consisting of two squares attached edge to edge.

Trominoes Edit

Tromino
There are two trominoes: the I tromino, consisting of three squares attached in a straight line, and the L tromino, consisting of a square with two other squares attached to the top and bottom.

Tetrominoes Edit

Tetrominoes
There are five tetrominoes - the square tetromino (consisting of four squares in a square shape), the line tetromino (consisting of four squares in a straight line), the T tetromino (consisting of a square with three squares attached directly to it) and the L tetromino (consisting of three squares in a line then an additional square on the bottom at a right angle).

The tetromino with the largest edge length is the line tetromino, with an edge length of 9l. The tetromino with the smallest edge length is the square tetromino, with an edge length of 4l.

Pentominoes Edit

There are twelve pentominoes. These are named, by their approximate shape:

  • Line pentomino
  • L pentomino
  • P pentomino
  • R pentomino
  • S pentomino
  • T pentomino
  • U pentomino
  • V pentomino
  • W pentomino
  • X pentomino
  • Y pentomino
  • Z pentomino

The pentomino with the largest edge length is the line pentomino, with an edge length of 12l. The pentomino with the smallest edge length is the P pentomino, with an edge length of 9l.

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