This is the second edition of Spin Master’s series of “Impossible Puzzles.” These are standard 2D “jigsaw” puzzles, but with features that make them more challenging for avid puzzle solvers. Each edition, I’ve tried to add a little more to improve the design and increase the fun. Here are the main features:

• Two Lenticular States: The Puzzle will look different as you move around it or move the individual pieces. The Lenticular process also adds some depth to the image.

• Irregular Borders: This gives you a larger perimeter than a standard rectangular puzzle and, therefore, more pieces, especially more corner pieces.  

• Extra Pieces: The extra pieces form a separate puzzle, but they appear to belong to the main puzzle.

The Rubik’s Edition was the first. The second version is Tetris, which you can see here. The 3rd edition is finished but hasn’t been announced, and the 4th edition is underway.

You can purchase this puzzle here.