Home TitanDescriptionThe aim is to open the sphere. A simple-looking, yet highly challenging take-apart puzzle. Difficulty: 9/10 DetailsMachined from solid brass, Titan measures 50mm in diameter, and weighs 515g. The brass is left unfinished, leaving it to slowly patinate and darken with use. SpoilersIf you're stuck on a puzzle, email firstname.lastname@example.org and ask for a clue.