In 1974, to teach students the mathematical theory of groups, Rubik created 27 wooden squares painted in six colors. Despite struggling with assembling it for a month, he patented his creation, the "Magic Cube" (Bös kocka), now known as the "Rubik's Cube", the following year. First sold in Budapest in 1977, it premiered internationally in 1980 after an agreement with the "Ideal Toy Corporation". By 1982, over 100 million official and 1.5 times more unofficial cubes were sold.
The Rubik's Cube won best toy competitions in the USA, UK, Germany, France, and a Hungarian award for best invention.