19-23 July 2021, Ventspils, Latvia
May 14th 2021

An FAQ section was added, containing details on what is covered by registration fees and what is not.

Schedule

The IOL 2021 preliminary program
 
July 19, live at 10:00 EEST, recording at 17:00 EEST - Opening ceremony
July 19, 14:00 EEST - Introduction lecture
July 20 - Individual contest (6-hour window when all participants have to start the contest).  The exact time will be announced after a preliminary registration.
July 21 - Team contest (4-hour window when all participants have to start the contest) ). The exact time will be announced after a preliminary registration.
July 22  - social activities, lectures.  The exact time will be announced after a preliminary registration.
July 23 - social activities, lectures.  The exact time will be announced after a preliminary registration.
July 24, 11:00 EEST - Solution presentation and special awards
July 24, 14:00 EEST - Award and closing ceremony