There really is, it turns out, a true story involving cheating in chess and a vibrating crotch. Only this one is a whodunnit that dates back more than 30 years and was Chess ace Carlsen quits after one move as Niemann 'anal beads' row escalates Chess Feud: the Hans Niemann Magnus Carlsen Anal Beads Rumor Explained Business Insider Guardian column today spoke to grandmasters others in chess about the new Netflix doc on Carlsen v Niemann and @KitChellel's gripping new book Lucky Devils Vibrating crotches, anal beads and suspicious minds: Ben Mezrich just explained how vibrating anal beads could be used to cheat at chess and Billy and Lisa were absolutely speechless