<prompt> Pedzisa mutsara unotevera: Geurt Gijssen aizivikanwa zvikuru somutongi wemutambo wechess. Akanga ari mutongi mukuru weOlympia yeChess 1998,  <response>: 2000, 2002, 2006, pamwe nemitambo inoverengeka nemitambo yeWorld Chess Champion mazita: 