<prompt> Qedela umusho olandelayo: UMarios Schinis ; owazalwa ngo-6 Meyi 1954, ungumdlali we-chess waseCypriot, onqobe kathathu i-Cypriot Chess Championship 1986, 1990, 1992, owine indondo yegolide ye-Olympic Chess  <response>: Ngo-1984 futhi 