Confetto Box (RF-39) was developed systematically. A different maze was madeon the same structure. The top links with the 4 sides. The bottom is thelid. The 4 side plates work with each other. The movement is only openingand closing, with no relation between the opposite sides, and only the topand sides link. In order to achieve these movements, I arrived at thesedesigns.
This is a kind of “Branch Type” puzzle. The route is symmetrical. Themovement is standard as a “Branch Type”. But, an advanced Secret Shortcuttechnique is possible. The total number of steps is 21(normal), andextracted number of side movements is 7. In case you succeed at finding theShortcut, the total number of steps will be reduced to 17. Though it mightbe more difficult… When I found the Shortcut skill I was excited andremembered NES.