<prompt> Nyorai kupfuurira kweiyi ndima - Evans akamirira U.S. mumaOlympics eChess masere munhambo yamakore makumi maviri namatanhatu, achikunda ndarama 1950  <response>: , sirivha 1958, uye menduru dzebronze 1976 pamutambo wake, uye kutora chikamu muchikwata chegoridhe 1976 uye menduru dzesirivha 1966. 