) ▁in ▁ 1 9 6 0 . ▁In ▁the ▁event , ▁held ▁at ▁B led , ▁Zag reb ▁and ▁Bel grade , ▁however , ▁he ▁finished ▁sevent h ▁of ▁eight ▁with ▁ 1 0 / 2 8 . ▁He ▁also ▁played ▁in ▁the ▁following ▁Inter zon al ▁( Sto ck holm ▁ 1 9 6 2 ) ▁but ▁failed ▁to ▁qual ify ▁for ▁the ▁C andid ates . ▁Among ▁his ▁best ▁tournament ▁results ▁were ▁joint ▁third ▁in ▁the ▁first ▁P iat ig or sky ▁Cup , ▁Los ▁Angeles ▁ 1 9 6 3 , ▁with ▁ 7 ½ / 1 4 ▁and ▁shared ▁first ▁with ▁L jub om ir ▁L jub o je vić ▁at ▁W ijk ▁aan ▁Ze e ▁ 1 9 7 6 , ▁ahead ▁of ▁Mik h ail ▁Tal . ▁According ▁to ▁Ch ess met rics , ▁O la f sson ▁at ▁his ▁best ▁was ▁r ated ▁ 2 6 9 2 ▁on ▁the ▁October ▁ 1 9 5 8 ▁rating ▁list , ▁ranked ▁# 1 3 ▁in ▁world . ▁ ▁In ▁ 1 9 7 8 , ▁he ▁succeeded ▁Max ▁Eu we ▁as ▁President ▁of ▁the ▁international ▁ch ess ▁gover ning ▁body ▁F IDE . ▁During ▁the ▁ten ure ▁he ▁pres ided ▁over ▁the ▁ 1 9 8 1 ▁Kar p ov – K orch no i ▁World ▁Championship ▁match . ▁Since ▁Kor ch no i ▁defect ed ▁from ▁the ▁Soviet ▁Union ▁in ▁ 1 9 7 6 , ▁the ▁S ovi ets ▁were ▁holding ▁Kor ch no