Copyright DC Comics 1993.
(plastic, 6" x 4+78" x 1/4") A larger version of the Fifteen puzzle that can be solved the same way (see also the 27 and 31 puzzles). The only difference here is that the keeper piece that is in the 50th square in the lower left is removed, and then the piece that goes at the left of the bottom row can be parked there while solving the puzzle, and moved up at the end.