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.
Among the Link Type Box series that is considered relatively advanced works, this movement may be the most beautiful. The total number of steps is 21, and extracted number of side movements is 7. This is a kind of “Turning Type” of puzzle. The route to solve it turns one time. The image ofthe movement was a Rainbow. This design was used for the ChristmasPresent in 2014.