He blinked, and glanced over to Jim; he hadn't heard him mention his brother very often, if at all--but he knew one did exist. Starfleet files could come in handy like that, as well as A7 computer degrees. "...It is a puzzle between two or more people, where you begin with a pile of metal rods and endeavour to place them into the shape of two icosidodecahedra, one nested inside another. The person to place the last connecting rod wins."