XV International Online Abakus Olympiad 2026
28–30 November 2026
Geniuses fromacross the World
Our contestants are from Austria, Czech Republic, Germany, Hong Kong, Ireland, Italy, Poland, Romania, Slovakia, the UK, the USA and many more countries.
XV International Online Abakus Olympiad 2026
Categories for Everyone!
| Groups in Mental arithmetic | |||
|---|---|---|---|
| Simple 1 | 2020–2022 | ||
| Simple 2 | 2018–2020 | ||
| Simple 3 | 2012–2017 | ||
| Small Friend 1 | 2017–2022 | ||
| Small Friend 2 | 2012–2017 | ||
| Big Friend | 2014–2019 | ||
| All Methods 1 | 2017–2021 | ||
| All Methods 2 | 2012–2017 | ||
| Multiplication & Division | 2012–2021 | ||
| Adults | 2011 and older |
| Groups in Abakus Neuromath | |
|---|---|
| Preschoolers | 2019–2022 |
| Grades 1–2 | 2017–2021 |
| Grades 3–4 | 2015–2019 |
| Grades 5–6 | 2013–2017 |
| Adults | 2014 and older |
(mental calculation is acceptable)
4 minutes
(mental calculation is acceptable)
4 minutes
(mental calculation is acceptable)
4 minutes
2 minutes
and diplomas for winners
🏆 Tournament Timeline
3 October - 9 December
✨ Grow with Intellectual Challenges
🏛 Choose Your Faculty
Each participant can choose only one faculty — or join both for a combo experience!
📅 03.10–15.10 | €20 / $20
📅 16.10–15.11 | €25 / $25
📅 from 16.11 | €30 / $30
📅 03.10–15.10 | €20 / $20
📅 16.10–15.11 | €25 / $25
📅 from 16.11 | €30 / $30
📅 03.10–15.10 | €35 / $35
📅 16.10–15.11 | €45 / $45
📅 from 16.11 | €50 / $50
Our registration finishes soon!
Frequently asked questions
Our online tests will be hosted on a special Abakus platform. Everyone who registers will receive a login and password and also a video tutorial on using the platform.
No, you can't. Each participant can only participate in one category. People who take part in more than one category will be disqualified.
After registration, the system will redirect you to the payment page.
Each participant must record his test. If there are any unexpected situations, we will ask you to send the recording. After it has been verified and authenticated, the commission may allow the participant to re-pass the test. You can find more information on how to record a test in our rules.
All information can be found in the RULES tab of the "Documents and Tasks" section.
Yes, the mental calculation is acceptable during stage 1-3.
The Mental arithmetic olympiad is available to everybody older than 4 years old. There's a group for Adults so teachers could also compete with each other.
The XV International Online Abakus Olympiad 2026 will be held from November 28 to November 30, 2026.
You can complete the Olympiad at any convenient time during these three days, from anywhere in the world.
The demo tests are available on the olympiad platform after registering and completing the payment.
The registration deadline is on November 30, 2026, at 23:59 (UTC+0)..