<prompt> Pedzisa mutsara unotevera: Akamirira Costa Rica paChess Olympiads dzinoverengeka, kusanganisira 1988 akarova 611 pabhodhi 4,  <response>: 1990 8.513 pabhodhi 3, 2002 711 pabhodhi 2, 2014 49 pabhodhi 3 uye 2016 610 pabhodhi 1. 