 Complete the following phrase:  Born in Reykjavík on 15 February 1960, Margeir earned his international master title in 1978 and grandmaster title in 1986. He won the Hastings Premier in January 1986 with a score of 91213. He won the Icelandic Chess Championship in 1986 and 1987, and won the Nordic Chess Championship in 1987. He competed in the July 1985 Interzonal, scoring 717; the 1990 Interzonal, scoring 613; and participated in the 