<prompt> Bhala okuqhubekayo kwalesi sigaba - USteiner wayeyilungu lamaqembu e-United States Chess Federation athunyelwa phesheya e-Olympiad Chess eHague ngo-1928, Hamburg ngo-1930, ePrague ngo-1931 naseDubrovnik ngo-1950  <response>: . futhi. Njengoba ayengumpetha wase-U.S. wayekaputeni weqembu lika-1950. 