It must be hard being Ernő Rubik. Back in the 1980s, the architect and toy inventor had the rare good fortune of becoming one of very few self-made millionaires from communist Europe. But in the process he was horribly pigeon-holed. His patented Rubik's Cube sold 350 million units, while his other creations -- Rubik's Snake, Rubik's Magic, and presumably a few blocky buildings somewhere in Hungary -- barely got a mention. Today, you can contribute to the injustice of it all by celebrating the 40th anniversary of the first Cube prototype, courtesy of a playable Google Doodle. Meanwhile, the inventor is currently touring the world with an exhibition that is pointedly titled "Beyond Rubik's Cube." Ernő, you have our sympathies.