The Hungarian Cube Maker referred to in the crossword solution is none other than Erno Rubik, the inventor of the Rubik's Cube. Rubik was born in Budapest, Hungary in 1944 and is a professor of architecture and design. He created the Rubik's Cube in 1974 as a teaching tool to help explain three-dimensional geometry. The cube became an international sensation and has since sold over 350 million units worldwide.