<prompt> Ngwala go tšwela pele ka serapa se - O thopile South African Closed Championship gararo, ka 1998, 2003 le 2011, le South African Open gabedi, ka 2004 le 2008. Kobese o ile a fiwa ke FIDE maemo a International Master IM ka 1995. O ile a bapala bakeng sa Afrika Borwa ka di-Olympiad tša Chess tša 1992, 1994  <response>: , 1996, 1998, 2004, 2006, 2008, 2010, 2012, 2014, 2016 le 2018 