5개의 정사각형을 연갤해 만들어 낼 수 있는 도형을 펜토미노라고 합니다. 카타미노에는 12개의 펜토미노가 들어 있으며, 이 펜토미노를 이용해 카타미노의 보드를 채워 넣는 퍼즐입니다. 게임 보드는 이동식 파티션으로 구성돼 있어 펜타미노를 이용해 4개 세트부터 12개 전체 세트까지 가져가 만들 수 있습니다.

The game consists of 12 different pieces constructed of right angled blocks so each piece is made of 5 "squares". (Think Tetris pieces, but 5 squares instead of 4.)

An old version of the game had only 10 pieces; the completely straight 5 square and the 5 square "plus sign" were not included. Both versions also have a bunch of "filler" pieces of 1 or 2 squares.

The gameboard is constructed with a movable divider so one can take sets of 4 up to the whole set of 12 pieces and form them into a 5 block by X rectangle. (Where X = the number of wood blocks in your set.)

The two or three player strategy game is accomplished on a square board divided into 64 smaller squares. Players take turns to place a piece on the gameboard. The first player who cannot place a piece anymore loses. (Similar to Blokus)

The two player puzzle game mode is accomplished by dividing the board into two sections, each player chooses five blocks and are also given 4 small "filler" blocks of 1 and 2 squares. The first one to fit all their blocks perfectly into their half of the rectangle board, wins.