<prompt> Bhala ukuqhubeka kwalesi sigaba - UNestler wadlala kabili e-Italy kuma-Olympiads eShakha eDubrovnik ngo-1950 naseHelsinki ngo-1952  <response>: , futhi wamelela i-Italy emidlalweni yobungani neCzechoslovakia ngo-1957 naseSwitzerland ngo-1958. 