Site of the IChO Steering Commitee, participants, regulations
Past problems, history
Detailed past participants database
Catalogue of Logos
Tienjin, China | July 10 - 18, 2022
Osaka, Japan | July 25 - August 2, 2021
Istanbul, Turkey | July 23-29, 2020
Paris, France | July 21-30, 2019
Bratislava and Prague, Slovakia and Czech Republic | July 19-29, 2018
Nakhon Pathom, Thailand
Tbilisi, Georgia