The goal of Intersection is to assemble the six pieces in the shape of three intersecting tubes. Each piece is colored differently with a unique combination of two out of four different colors. The solution is only correct if the place where the planes adjoin (have a line in common), have no same colors touching.
Although the parts can be separated/put together in Coordinated Motion or in 3+3 split, for the untrained a considerable amount of dexterity is needed to put it together. A metal version of this puzzle was exchanged during IPP 19.