Chromino

Chromino is a 2001 board game designed by Louis Abraham, for 2 to 7 players. The game is similar to the classic game of dominoes, but uses colours instead of numbers. Five colours are used: red, blue, purple, yellow and green. Each Chromino piece contains three coloured squares, and all 75 distinct combinations of colours are used. There are also five "wild card" pieces, with a yin-yang symbol in the middle, where the middle square may be used as any colour.

A game of Chromino at the end of play.

Each piece has eight square edges. At least two edges must touch a piece already on the board, and squares of different colours may not touch each other. The game begins with a randomly chosen piece placed on the board. On their turn, each player places a piece on the board. If they cannot place a piece, they must take a new one. If the new piece is playable it must be played. The first player to run out of pieces wins but play continues for one last round. There can be more than one winner.