It must be hard being Ernő Rubik. Back in the 1980s, the architect and toy inventor had the rare 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.