cubes made of paper, of wood, monochrome or coloured, solid or broken down into blocks'. Holed up in this wondrous den at the university, he hatched what would become the Rubik’s Cube. Keen to ...

Closing, Alessandro suggests: "Wrap each cube in parchment paper or place them in an airtight ... planet but also discovering new ways to make the most of what you have." Alessandro's hack was ...