Tuhia he whakamāramatanga mō tēnei wāhanga - I whakataetae a Yosef Porath i ngā whakataetae o te Chess Olympiad i te tekau mā rua ngā wā. I te tau 1928, he mema a Foerder o te kapa Tiamana i te 2nd Olympiad
i te Hague. I takaro ia i nga wa maha i te Silesian Chess Congress: i tohaina te 1 me Ludwig Schmitt i Gleiwitz i te 1927; i tu tuarua, i muri i a Gottlieb Machate, i Reichenbach i te 1928; ka wikitoria i Breslau i te 1930, i tohaina te 1 i Bad Salzbrunn i te 1931, ka wikitoria ano i Ratibor i te 1932. I wikitoria ano ia, i mua o Salo Flohr, i Bilina 1930, a ka tu tuarua, i muri o Gottlieb Machate, i Breslau 1933.