<prompt> Kalima dǝga tǝmzǝyin: Donovan van den Heever dǝ kǝlele saa 1981 bikke chessbe lardǝ South Africabe wo. Suro saa 2014 lan, shiye kazadala chessbe lardǝ South Africa be dǝa kǝnasartǝ, saa adǝma dǝn South Africa be wakilzǝna nasha chess Olympiadbe dǝn, suroladǝn 2006,  <response>: 2010, 2014, 2016 kuru 2018. 