Puzzle formed by a plurality of cubes. Puzzle formed by a plurality of cubes, wherein each face (3) of each cube shows a fragment of an image, and which is formed by a quantity of cubes whose square root is a whole number. The cubes may be arranged three-dimensionally forming a bigger cube in such a way that each of the faces of the bigger cube shows an image formed by the fragments of images of each of the seen faces (3) of each of the cubes. Each of the cubes can have reversible connecting means for connecting the cube with cubes adjacent thereto preferably by means of movable magnets. The puzzle can be used as a flags construction game.