<prompt> Joseph Kupper 10 Kǝntawu Marchbe 1932  5 Kǝntawu Junebe 2017 shima Swiss chess International Master IM 1955, sau yakkǝ Swiss Chess Championship lan kǝnasartǝ 1954, 1957, 1962 kuru chess Olympiad lan kam fal lan medal silver medal kǝnasartǝ  <response>: 1954 ro walwono. 