Mezue ahịrịokwu na-esonụ: Onye egwu a ma ama (violinist), nwanne nwoke nke okenye nke Hans Johner, ọ meriri Switzerland Championship ugboro isii, ya bụ na 1907 (jikọtara ọnụ), 1908 (jikọtara ọnụ), 1925, 1928 (jikọtara ọnụ), 1930 na 1932 (jikọtara ọnụ), ma kpọọ maka Switzerland na bọọdụ nke abụọ na
3rd unofficial Chess Olympiad na Munich 1936 (+4 <unk>7 =6).