<prompt> Bhala ukuqhubeka kwalesi sigaba - UJosef Kupper 10 Mashi 1932 5 Juni 2017 wayengumdlali we-chess waseSwitzerland International Master IM 1955, owawina kathathu iSwitzerland Chess Championship 1954, 1957, 1962 futhi wathola indondo yesiliva ye-Chess Olympiad 1954  <response>: Izindaba 