<prompt> Bhala ukuqhubeka kwalesi sigaba - UNajdorf wadlala izikhathi eziyishumi nanye e-Argentina kuma-Olympics e-Chess kusukela ngo-1950 kuya ku-1976. Wadlala ebhodini lokuqala emdlalweni we-Olympic we-Chess we-9 eDubrovnik ngo-1950 8 0 6, kanye 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.  <response>: , eSiegen ngo-1970, naseHaifa ngo-1976. Ngesikhathi se-Olympiad eNice ngo-1974, wadlala ebhodini lesithathu. 