Fadi Cube is a twisty puzzle like Rubik's Cube. It is an attempt to use other than conventional slices to make a twisty puzzle. At first sight, it looks impossible to twist this puzzle at all. But the pieces go over and under each other to make it possible. According to Bram Cohen, the closest "relative" of Fadi Cube is Katsuhiko Okamoto's Lattice Cube.