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
fide world championship world chess championships world chess champions world chess champion chess champions chess champion chess world championship chess world champion world chess chess championship world chess championship
chess champion
WikipediaEntity
Chess champion