This work was designed as a Christmas present for 2015.
This is a developed version of “Bean Bag Drawer (RF36)” that was designed in 2013. The goal is to find the hidden deep inner space of the drawer. You should move the four white plates in correct order. Of course, it’s not quite that simpleto open – you also need to consider other ways it all fits together. When you feel the spring start to shift, you will know that you have successfully found the inner box.