Cika wannan jumla: Blass ya taka leda a Poland a kan teburin ajiya (+4 <unk>3 =5) a cikin
Gasar Olympiad ta Chess ta 2 a Hague 1928. Ya lashe lambar tagulla a kungiyar a can. Ya, tare da sauran membobin kungiyar Warsaw (Rafał Feinmesser, Frydman, Stanisław Kohn, Leon Kremer, Karol Piltz da Henryk Pogorieły), sun lashe lambar zinare a gasar zakarun Poland ta 1 a Królewska Huta (Königshütte) 1929; ya ɗauki na biyu, a bayan Kremer, a Warsaw 1929 kuma ya ɗauki na 8 a Warsaw 1930 (P. Frydman ya ci nasara).