In Pixbox, the active player lays out six transparent cards at random. These cards show one or more blue squares on them, with the squares arranged in various patterns. The player then lays out a red task card, and everyone must visualize — without touching the blue cards! — how they could arrange one or more blue cards in an overlapping manner, but with only the transparent areas covering one another, so as to recreate the image shown on the red task card. As soon as a player thinks they have a solution, they yell out and attempt to demonstrate their idea with the transparent cards. If they're correct, they keep the cards they used, and whoever collects the most points wins.