Ichimatsu Cube - 18 stepsJapanese puzzle boxes (also known as a secret or trick box) are boxes with six sides, which feature a hidden opening that can only be released after youve solved the puzzle. Moves must be made in the correct order to open the box and reveal the secret compartment. This natural wooden puzzle box is a unique challenge that any puzzle lover will enjoy. *The types of natural wood used for the top and bottom surfaces are occasionally subject to change.