Pedzisa mutsara unotevera: MuBuenos Aires 1965, Sanguineti akawana 6.5/11 kuti apedze ari wechina, uye akakunda 1965 Argentine Championship ne16/21 inoshamisa. Mar del Plata 1965 yakanga yakasimba zvakare, naNajdorf, Leonid Stein, naYuri Averbakh varipo, uye Sanguineti akakwanisa kungobata nzvimbo yechisere ne8.5/15. Gore rakatevera paMar del Plata akawana 7.5/15 kuti apedze akabatanidzwa wechinomwe. Nokuda kwe
Havana 1966 Olympiad, Sanguineti akanga ari zvakare mubhodhi mana yeArgentina, uye akaita zvakanaka kwazvo ne11/15. Argentina yakapedza iri yechishanu.