Complex sentence: There are multiple variations of the Gear Cube, ranging from the most simple, a 2x2 Gear Shift, to the most complicated, the 3x3 Even Less Gears Cube.
Split into simpler sentences: There are multiple variations of the Gear Cube ranging from the most simple being a 2x2 Gear Shift. To the most complicated being the 3x3 Even Less Gears Cube.