Feliks Zemdegs solved his 5×5 cube at Melbourne Cube Day in 44.837 seconds. And the crowd went not at all wild. The 5×5 Rubik’s cube—or Professor’s cube—has over 282 trevigintillion (10^72) ...

A quantum Rubik’s cube would be infinitely more complex than the traditional puzzle, but mathematical modelling shows it wouldn’t be unsolvable. In the summer of 2022, Noah Lordi and Maedée ...