A seriously difficult double-sided puzzle of Cats! It actually only has 529 pieces but it will feel like 4,000! Each side of The World’s Most Difficult puzzle features exactly the same artwork offset by 90 degrees and cut from both sides and so it’s impossible to tell which side is which!.
Having the same picture on both sides makes any puzzle hard, but there's more to this one! The puzzle has been cut vertically and horizontally so you can't tell which side of the piece does not fit correctly.
The Finished puzzle measures 384mm x 384mm.