<prompt> Nyorai kupfuurira kweiyi ndima - Evans akamirira U.S. muOlympiads yeChess masere munhambo yamakore makumi maviri namatanhatu, achikunda ndarama 1950, sirivha 1958  <response>: , uye menduru dzendarira 1976 pamutambo wake, uye kutora chikamu muchikwata goridhe 1976 uye menduru dzesirivheri 1966. 