<prompt> Bhala okuqhubekayo kwalesi sigaba - Wanqoba i-Argentina Championship ka-1974 nge-13.516, eyisiqu sakhe sesithathu. Okwenzelwa iNice ngo-1974  <response>: U-Olympiad, wayesesikebheni sesibili, futhi wenza u-815. Waya eCanada ngo-1974 ePan American Chess Championship eWinnipeg, lapho afika khona endaweni yesibili ngo-1215 ngemuva kweqhawe laseMelika uWalter Browne. Ukuphazamiseka okungalindelekile emdlalweni wakhe omuhle kwaba umqhudelwano we-Buenos Aires CA ka-1975, lapho akwazi khona ukuphatha u-4.511. Kodwa walulama ngokushesha. Wathola isihloko somqhudelwano eFortalza Zonal 1975 ngo-1317, amaphuzu angu-1.5 ngaphambi komgijimi, uMiguel Quinteros. Lokhu kwaphinde kwamenza wakwazi ukungenela umqhudelwano weWorld Championship. Waba ngowesine emqhudelwaneni wase-Argentina ngo-1975 eBuenos Aires ngo-13.519. Khona-ke eMar del Plata ngo-1976, wabambana neqembu lokuqala ngo-1115. Ngawo lowo nyaka wanqoba futhi eBuenos Aires Konex chess tournament. 