Rubuta ci gaba don wannan sakin layi - An haife shi a 1975, Héðinn ya lashe gasar zakarun duniya U12 Chess a 1987. A shekara mai zuwa, ya yi gasa a Gasar Cin Kofin Duniya ta U14, wanda aka gudanar a Romania. Ceaușescu har yanzu yana kan mulki a lokacin kuma babu isasshen abinci ga masu fafatawa; Héðinn ya sha wahala daga rashin abinci mai gina jiki yayin taron kuma ya kamu da rashin lafiya. A cikin 1990, ya lashe Gasar Chess ta Icelandic, yana da shekaru 15. A wannan shekarar, ya fafata a gasar Olympics ta Chess ta 29
, ya ci 11⁄2/3 yayin da Iceland ta gama na takwas daga cikin kungiyoyi 108. A wannan lokacin, darajar Elo ya wuce 2500. Ya sami lambar yabo ta kasa da kasa a shekarar 1994 da kuma lambar yabo ta Grandmaster a shekarar 2007.