Tetris exploded in popularity after a race in the 1980s to secure global rights for the Soviet-made video game, a tale retold in a new movie. It is still captivating minds decades later.

Alexey Pajitnov and Henk Rogers have known each other a long time. The man who created Tetris and the man who (more or less) sold it to the world met 34 years ago in a government office in Moscow.