Magnus Carlsen, at the age of 18, became the world's youngest what?
World Chess Championships World chess champion World Chess World chess championship FIDE World Championship Chess champions Chess world championship Chess championship Chess World Championship Chess world champion Chess champion World Chess Champions World Chess Championship World Chess Champion
world chess championships chess championship world chess championship chess world championship chess world champion world chess champion fide world championship world chess champions world chess chess champions chess champion
chess champion
WikipediaEntity
Chess champion