Mezue ahịrịokwu na-esonụ: Evans nọchitere anya U.S. na asatọ Chess Olympiads n'ime afọ iri abụọ na isii, na-emeri ọlaedo (1950), ọlaọcha (
1958), na ọla nchara (1976) maka egwuregwu ya, na isonye na ọla edo otu (1976) na ọla ọcha (1966).