This is a video of puzzle aficionado FLEB discussing and demonstrating the CrazyBad 4x4x6 Fisher Cuboid, a much more difficult version of a Rubik’s Cube. I’ve never even been able to solve the original 3×3 and people are out there making 4x4x6 cuboids. Crazy. Although to my credit I did solve one side of a Rubik’s Cube once. “Look at you, genius.” I was probably the smartest person in my class. “You were homeschooled.” So I was the best looking too.

Keep going for the video.

Source: Geekologie – Looks Difficult: The 4x4x6 CrazyBad Fisher Cuboid Rubik’s Cube Variant