<prompt> Tlatša polelo ye e latelago: Josef Kupper 10 Matšhe 1932 5 June 2017 e be e le Swiss chess International Master IM 1955, mofenyi wa Swiss Chess Championship ka makga a mararo 1954, 1957, 1962 le motho yo a thopilego sefoka sa silifera sa Chess Olympiad  <response>: 1954. 