<prompt> Bhala ukuqhubeka kwalesi sigaba - Wazalwa ngo-1975, uHéðinn wanqoba iWorld U12 Chess Championship ngo-1987. Ngonyaka olandelayo, wancintisana eMqhudelwaneni Womhlaba Wama-U14, owawuseRomania. UCeaușescu wayesesemandleni ngaleso sikhathi futhi kwakungekho ukudla okwanele kwabaqhudelana; U-Héðinn wahlushwa ukungondleki ngesikhathi somcimbi futhi wagula. Ngo-1990, wanqoba i-Icelandic Chess Championship, eneminyaka engu-15. Ngawo lowo nyaka, waqhudelana kuma-Olympic Chess angama-29  <response>: I-Iceland iqede endaweni yesishiyagalombili kumaqembu ayi-108. Ngalesi sikhathi, isilinganiso sakhe se-Elo sasingaphezu kuka-2500. Wathola isicoco sakhe se-international master ngo-1994 nesicoco sakhe se-grandmaster ngo-2007. 