Loose is a microgame similar to rock-paper-scissors, but played with 9 cards. There are several ways to play.
The common rules are : Pink beats Blue, Blue beats Yellow, Yellow beats Pink.
Within a faction, circles beat triangles, triangles beat squares, and squares beat circles.
Game 1 : Play the cards two by two until the final pair decides the winner.
Game 2 : Within an initial hand of 4 cards, play them all one by one and get a point for each round won.
Game 3 : With all of them face up, take turns choosing cards one by one, then align your 4 cards face down to battle automatically.
Game 4 : The author encourages you to invent your own rules and share them on social media.