By the end of the first week, there are 485 registered participants from 62 countries (the list of countries is given below). In total, 109 solutions were submitted, out of which 8 were correct.
| First Name | Surname | School/University | Country | date | time |
| Dobrica | Jovanović | Mathematical Grammar School | Serbia | 17/11/19 | 18:05 |
| Duc Huy | Tran | The Hong Kong University of Science and Technology | Viet Nam | 18/11/19 | 05:43 |
| Tung | Linh | Currently in gap yer | Vietnam | 18/11/19 | 06:55 |
| Oliver | Lindström | KTH | Sweden | 18/11/19 | 16:05 |
| Guilhermo | Costa | Colégio Objetivo Integrado | Brazil | 18/11/19 | 18:14 |
| Hiển | Nguyễn | HUS High School for Gifted Students | Vietnam | 21/11/19 | 06:56 |
| Zhu | Youheng | Shenzhen Middle School | China | 23/11/19 | 14:38 |
| Hayk | Soghomonyan | ETH Zurich | Switzerland | 24/11/19 | 03:40 |
Participating countries: Australia, Azerbaijan, Bahrain, Bangladesh, Belarus , Bosnia and Herzegovina, Brasil, Bulgaria, Canada, China, Costa Rica, Ecuador, Egypt, El Salvador, Estonia, Finland, France, Georgia, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Italy, Japan, Kazakhstan, Korea, Kosovo, Kyrgyzstan, Latvia, Lithuania, Macedonia (North), Malaysia, Mexico, Moldova, Mongolia, Morocco, Nepal, Netherlands, Pakistan, Peru, Philippines , Poland, Portugal, Romania, Russia, Saudi Arabia, Serbia, Singapore, Slovakia, Slovenia, Sweden, Switzerland, Syria, Tajikistan, Thailand, Turkey, United Kingdom, United States, Uzbekistan, Vietnam .