Skewb Xtreme _ Meffert's Rotational Puzzle _ Skewb Extreme Mix up xtreme skewb puzzle by twisting and turning in multiple diagonal directions. Objective is to return large "x" on each side to a single color. Additionally each smaller (indented) diamond-shapes need to be split between 2 colors. There are 12 smaller diamond-shaped indentations. Rated as a level 7 (on a scale of 5 to 10, where 10 is the most challenging. ).