Mathematics without borders

International tournament


Dear friends of Mathematics without Borders,


During the last 8 years, since 2013, Bulgaria has been the host of Mathematics without Borders International Tournament for students aged 7 to 18.
During those 8 years, the tournament has become one of the biggest contests in Bulgaria, as well as worldwide, in terms of participant numbers and number of participating countries from 5 continents.
The past year was difficult for all of us, but thanks to your dedication we managed to successfully run the eighth edition of MWB.
We would like to express our sincere gratitude to you for the efforts you put towards making this happen.
We hope you are in good health and ready for new challenges.
We kindly invite you to join the ninth edition of the tournament during the 2021/2022 academic year.

The tournament is for students aged 7 to 18 years, divided into nine age groups.

Group 1 – students born in 2014
Group 2 – students born in 2013
Group 3 – students born in 2012   
Group 4 – students born in 2011
Group 5 – students born in 2010
Group 6 – students born in 2009
Group 7 – students born in 2008
Group 8 – students born in 2007       
      Group 9 – students born in 2006 or earlier (15-18-year-old students)



Autumn round

18 – 31 October 2021

Winter round

Jan 24 – Feb 6, 2022

Spring round

2231 March 2022

Final  – Nessebar, Bulgaria

1 – 5 July 2022



Due to the epidemiological situation caused by Covid 19, the timetable may be changed. There is a possibility that the remote rounds may need to be ran online, on an online platform chosen by the participating countries depending on their resources and the situation in each country.
Here you can download the documents you will need for participation in the tournament:



Dear friends of Mathematics Without Borders,

The MWB Final 2021 is now over. In the attached files you will find the general ranking, the winners of Champion Titles and the Math Stars of the Tournament.

1234 students from  17 countries (Australia, Azerbaijan, Bangladesh, Bulgaria, China, Estonia, Indonesia, Kazakhstan, Malta, the Philippines, North Macedonia, Romania, Russia, Slovenia, Taiwan, Turkey, Uzbekistan) took part in the Final.

We are very sorry for the limited experience of the Final that we all have had this year and we do hope that next summer things will be back to normal and we will be able to experience the Final in its fullness once again. On the other hand, we are thankful that we are still able to hold the Final at all given the current circumstances, albeit in a limited capacity.

We hope you’re all staying safe! Looking forward to seeing you next summer in Nessebar, Bulgaria!

MWB Team