Dee ihe ga-aga n'ihu na paragraf a - Guðmundur Arnlaugsson makwaara dị ka onye na-ekpe ikpe n'egwuregwu egwuregwu bọọlụ site na mmalite afọ 1970. N'afọ 1972, ọ ghọrọ FIDE International Arbiter. N'afọ 1981, ọ bụ otu n'ime ndị na-ekpe ikpe n'egwuregwu Anatoly Karpov na Viktor Korchnoi World Chess Championship
Ọ dị mma. Guðmundur Arnlaugsson abụrụla onye na-ekwu okwu egwuregwu chess na onye nkwalite na redio Iceland na telivishọn.