Erno Rubik: ‘The Cube has his own voice’

Lunch with the FT: Rubik’s Cube creator on getting rich in cold war-era Hungary and the nature of invention. The famous 'toy' is made out of a six-sided structure with nine interlocking cubes on each side, with each side painted on a different colour. It has 43,252,003,274,489,856,000 possible solutions, and to date around 450 million of them have been sold. Valerie Hopkins, from the Financial Times, has lunch with his 'discoverer', as he likes to think of himself, Erno Rubik, and finds out more about the inspiration behind the cube and what does he think about the cultural impact it has had in the last four decades.