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We welcome you to the IChO 2023


4 November 2022

Invitations sent to delegation head mentors

18 - 21 January 2023

International Steering Committee meeting in Zurich

25 January 2023

Registration open, early-bird fees

30 January 2023

Preparatory problems published online

1st April 2023

Regular registration fees apply

31 May 2023

Registration deadline: Confirm the delegation participation

1st June 2023

Worked solutions to preparatory problems published online

16 June 2023

Registration deadline: Submit information of individuals and travel details

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