Ko Josef Kupper (10 Maehe 1932 <unk> 5 Pipiri 2017) he kaitakaro Swiss Chess International Master (IM) (1955), e toru nga wa i toa i te Swiss Chess Championship (1954, 1957, 1962) me te toa o te mētara hiriwa o te Chess Olympiad (1954
Ko te tikanga o te ture.