Note: Our level rating system is different than Hanayama's. Hanayama's level 1 is equivalent to our level 5.... level 6 is equivalent to our level 10.
A quarter of this cake has been cut away showing three identical layers inside. This puzzle looks simple but it is very ingenious.
Designed by American designer Bram Cohen.
* Exchange rates shown above are estimates only, and may vary slightly from the rates charged by PayPal or your Credit Card Company.