Previous IChO's



51st IChO

Paris, France

from 21 to 30 July 2019

Official website

50th IChO

Bratislava, Slovakia and Prague, Czech Republic

from 19 to 29 July 2018


49th IChO

Nakhon Cothom, Thailand

from 6 to 15 July 2017


48th IChO

Tbilisi, Georgia

from 23 July to 1 August 2016

Official website

47th IChO

Baku, Azerbaijan

from 20 to 29 July 2015

Official website

46th IChO

Hanoi, Vietnam

from 20 to 29 July 2014

Official website

45th IChO

Moscow, Russia

from 15 to 24 July 2013

Official website


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