20 Moves is the story of how the best-selling puzzle toy came to market and the impact it had on the world around it. Tom Kremer stumbled upon an unwanted, unpatented puzzle game at the Nuremberg Toy Fair in 1979. It had been invented in Hungary in 1974 by Professor Erno Rubik who used it as a pedagogical aid for his architecture students and would go on to be played... see more