Mezue ahịrịokwu na-esonụ: Evans nọchitere anya United States na Olympiads Chess asatọ n'ime afọ iri abụọ na isii, na-emeri ọla edo (1950), ọlaọcha (1958), na ọla nchara (1976) maka egwuregwu ya, ma na-esonye na ọla edo (1976) na ọlaọcha (
1966) ihe nrite.