The World's most difficult double sided puzzle of Phone Icons! This puzzle is actually only has 529 pieces but it will feel like 4,000!
This fantastic puzzle is aptly named the World’s Most Difficult jigsaw puzzle it will have you hooked for hours as you try to figure out where each piece connects. Each side features exactly the same artwork, images of phone icons and so it’s impossible to tell which side is which, it will really have you scratching your head! Each side of the puzzle has the identical image offset 90 degrees from each other which is cut from both sides so it is impossible to tell which side is which! Each piece must be compared on both sides for size, shape, colour and fit, if all this sounds confusing just wait until you try it.