These 500 piece jigsaw puzzles each have the same image on both the front and back - however, one side has been turned sideways, making it very challenging to figure out which side is up!
Each piece has been identically cut from both directions so that even expert puzzlers won't be able to tell one side from the other - if you're ready for the ultimate extreme puzzle challenge, this is the puzzle for you. Finished puzzle size is 15" x 15". Released 2012.
Themes: Dessert & Sweets
It's called the world's most difficult puzzle because the pieces are double sided (so the image was printed on the puzzle front, and then on the back it was rotated and also printed there; so they're double sided plus rotated). It's CRAZY. If you want a challenge, this is it!
This turned out to be a double sided puzzle. I wasn't paying attention when I ordered it for my 12 year old granddaughter. Way to advanced for her. The pro's would love it thought.