Ku qor sii wadida cutubkan - Devos wuxuu laba jeer u ciyaaray Belgium Olombikada Chess; at Folkestone 1933
iyo Dubrovnik 1950. Wuxuu sidoo kale wakiil uga ahaa dalkiisa ciyaaro saaxiibtinimo oo uu la yeeshay Holland (1947, 1950, 1959) iyo Faransiiska (1948, 1949).