Brain Cube
If you’ve mastered solving 3×3 cubes and no longer find 4×4 and even 5×5 Rubik’s cubes challenging, then maybe it’s time you gave the Brain Cube a shot.
If you’ve mastered solving 3×3 cubes and no longer find 4×4 and even 5×5 Rubik’s cubes challenging, then maybe it’s time you gave the Brain Cube a shot.