<prompt> Qedela umusho olandelayo: Le misebenzi emihle yayibonakala ibikezela okuhle ngo-1976 Biel Interzonal, kodwa, ebhekene nenkundla yama-Grandmaster anamandla ayi-16 kwabayishumi nesishiyagalolunye abaphikisayo, kufaka phakathi ababengamaqhawe omhlaba uTigran Petrosian noMikhail Tal, wathola isilinganiso esidumazayo esingu-8.519 endaweni ye-16.  <response>: I-Haifa 1976 yaba ukubonakala kwakhe kokugcina kwe-Olympiad e-Argentina futhi wenza u-4.57 ebhodini lesine. 