By 16th May 2021, there are 1050 registered participants from 71 countries (the list of countries is given below). During the first two weeks, 14 solutions were submitted, out of which four were correct.
Correct solutions were submitted by:
| First Name | Surname | Country | School/University | date | time |
| Nikita | Semenin | Russia | Moscow Institute of Physics and Technology | 26/04/2021 | 20:39 |
| Zhening | Li | Canada | Sir John A. Macdonald Secondary School | 02/05/2021 | 14:07 |
| Huiyuan | Wang | China | University of Cambridge | 02/05/2021 | 17:07 |
| Oliwier | Urbański | Poland | Liceum Ogólnokształcące nr 7 w Poznaniu | 26/05/2021 | 09:47 |
Participating countries: Algeria, Azerbaijan, Australia, Bangladesh, Belarus, Belgium, Bosnia and Herzegovina, Bolivia, Brazil, Bulgaria, Cambodia, Canada, China, Croatia, Czechia, Egypt, El Salvador, Estonia, Finland, Georgia, Germany, Greece, Hungary, India, Indonesia, Iran, Israel, Italy, Japan, Kazakhstan, Kenya, Korea, Kyrgyzstan, Latvia, Lebanon, Lithuania, Macedonia, Malaysia, Mexico, Moldova, Mongolia, Nepal, Nigeria, North Macedonia, Pakistan, Peru, Philippines, Poland, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Thailand, Turkey, Turkmenistan, United Arab Emirates, United Kingdom, United States, Uzbekistan, Vietnam.