|Date:||15th May, 2021 (Saturday)|
|Time:||2:30 p.m. – 4:00 p.m.|
|Venue:||Contestants shall participate in the contest anywhere in Hong Kong or Mainland China with stable Internet access, such as at school or at home.|
Contestants shall login with their iPads (at least iPadOS 13.1 and at least 9.7″) to the contest platform https://hkpsoi.org to test machine and compete, using the accounts distributed in February (the online contest accounts and practice accounts are identical). During the contest, contestants must not use any applications other than the web browser, must not navigate to websites other than the HKPSOI contest platform, must not use calculators or other electronic devices, must not read other materials, and must not communicate with anybody. Contestants may prepare simple stationery such as pens, paper and rulers for rough work.