The Game of Fifteen (also called 15-puzzle, Gem Puzzle, Boss Puzzle, Mystic
Square and many others) is a sliding puzzle that consists of a frame of
numbered square tiles in random order with one tile missing.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.