<prompt> Pedzisa mutsara unotevera: Luján akamiririra Argentina, ari muchikwata chevakadzi, muOlympiads yeChess manomwe kubva muna 2002 kusvika muna 2014. Migumisiro yake yakanakisisa yakanga iri pa  <response>: 35th Chess Olympiad muBled muna 2002, kwaakawana 81213 uye akapedza 11th, uye 40th Chess Olympiad muIstanbul muna 2012, kwaakawana 69 aine chiyero chekuita che2455, kuti apedze 13th pabhodhi rimwe. 