Rubik's Spiral Challenge Jigsaw Puzzle

Because so many of the pieces have the same shape, this 55 piece jigsaw puzzle can be solved 1,814,400 different ways... but there is only one correct solution. Finding that one solution requires a solid understanding of the possible colour arrangements on the Rubik's Cubes shown on the puzzle pieces. For example, even though a piece may physically fit with another, if the resulting image now shows a Rubik's Cube with two yellow center squares, one of the puzzle pieces is not in the right place. The solved puzzle is approximately 49x49cm (19x19"). Comes in a shrinkwrapped cardboard box.