This is the hardest Jigsaw Puzzle in the world and for good reason.
pieces mean that you do not know which way around the pieces go, plus there is no picture. Â This puzzle is not for the faint hearted!
Hardest Jigsaw Puzzle
There are up to 240 clear pieces of impossible jigsaw puzzle for adults. This is the perfect activity to keep your brain active, and it might make you go a little mad.