Mosaic Cube By Meffert _ Rotational Brain Teaser Puzzle Sequential movement or rotational style brain teaser puzzle. Scramble up the colors by turning all sides randomly. Object is to return each of the six sides to a single color. All green on one side, all red on another side etc.) Tiwst and turn puzzle (similar to a rubik's cube) but with a totally different mechanism. Very challenging. Recommended for ages 12 to adult. NO force ever.