<prompt> Qedela umusho olandelayo: UNajdorf wadlala izikhathi eziyishumi nanye e-Argentina kuma-Olympics e-Chess kusukela ngo-1950 kuya ku-1976. Wadlala ebhodini lokuqala ku-9th Chess Olympiad eDubrovnik ngo-1950 8 0 6, kanye naku  <response>: IHelsinki ngo-1952 1123, i-Amsterdam ngo-1954, iMoscow ngo-1956, iLeipzig ngo-1960, iVarna ngo-1962, iHavana ngo-1966, iLugano ngo-1968, iSiegen ngo-1970, neHaifa ngo-1976. Ngesikhathi se-Olympiad eNice ngo-1974, wadlala ebhodini lesithathu. 