<prompt> Qedela umusho olandelayo: UNajdorf wadlala izikhathi eziyishumi nanye e-Argentina kuma-Olympics e-Chess kusukela ngo-1950 kuya ku-1976. Wayedlala ebhodini lokuqala emidlalweni ye-Olympia yesi-9 eDubrovnik ngo-1950 8 0 6, naseHelsinki ngo-1952 11 2 3, e-Amsterdam ngo-1954, eMoscow ngo-1956, eLeipzig ngo-1960, eVarna ngo-1962, eHavana ngo-1966, eLugano ngo-1968, eSiegen ngo-1970, nase  <response>: IHayfa ngo-1976. Ngesikhathi se-Olympiad eNice ngo-1974, wadlala ebhodini lesithathu. 