Rubuta ci gaba don wannan sakin layi - Guðmundur Arnlaugsson an kuma san shi a matsayin alƙali na gasar wasan chess daga farkon shekarun 1970. A shekara ta 1972, ya zama FIDE International Arbiter. A cikin 1981, ya kasance ɗaya daga cikin alƙalai a wasan Anatoly Karpov da Viktor Korchnoi na Gasar Cin Kofin Duniya
Ka yi haƙuri. Guðmundur Arnlaugsson ya kuma kasance mai sharhi da mai tallata wasan chess a rediyo da talabijin na Iceland.