MATH+ Advent Calendar
The MATH+ Advent Calendar invites you to discover the beauty and power of Math beyond the subjects covered in school.
The calendar offers fascinating insights into recent application-oriented mathematical research and into the everyday professional life of mathematicians. The 24 challenging puzzles are aimed at curious high school students, university students, teachers, and everyone interested.
The registration for the calender 2026 is possible since November 1.
You can find the challenges from the last years here:
https://www.mathekalender.de/wp/calendar/challenge-archive/.
News
Start of Registration on November 1
Starting November 1st, you can register for the MATH+ Advent Calendar 2025 as an individual, a group of friends or as a class. From December 1 to 24, the calendar will open a new window every day at 4 pm, revealing a tricky math puzzle. To pass the time in November, you can have aRead More »Start of Registration on November 1
Best Challenge 2025
You decide! Which challenge of this years math advent calendar was the best? (Up to three answers possible)
20 Years of Math Calendar: The Most Beautiful Problems and Solutions
This year, we’re celebrating 20 years of the Math Calendar! To mark the occasion, we’ve gathered our favorite challenges from each year. We hope you enjoy this vibrant collection of math challenges! BestChallenges_en
20 Years Math Advent Calendar – small puzzles
The Math Advent Calendar is celebrating its 20th anniversary this year! To celebrate and build excitement for this year's Advent calendar, we've come up with a few small puzzles. For questions or feedback, we are available in the forum. Have fun solving them! 20 Years Math Advent Calendar – Nonogram Link: https://www.mathekalender.de/wp/20-years-math-advent-calendar-nonogram/ Rules: Color theRead More »20 Years Math Advent Calendar – small puzzles
Participants 2025
In 2025, a total of 6205 participants took part in the MATH+ Advent Calendar. Our participants live in 69 countries:
More than half of the participants are pupils or teachers who take part together with their classes. However, the Advent calendar also attracts many math enthusiasts – including university students.
Particularly encouraging: almost half of the participating pupils are girls!
For more numbers from the recent and past MATH+ Advent Calendars, see our statistics subpage.
The Berlin Mathematics Research Center MATH+
MATH+ is a cross-institutional and interdisciplinary Cluster of Excellence based in Berlin. It sets out to explore and further develop new approaches in application-oriented mathematics. Emphasis is placed on mathematical principles for using ever larger amounts of data in life and material sciences, in energy and network research, and in the humanities and social sciences.
MATH+ is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for a first period of seven years since January 2019. It is a joint project of the three major universities in Berlin—Freie Universität Berlin, Humboldt-Universität zu Berlin, and Technische Universität Berlin—as well as the Weierstrass Institute for Applied Analysis and Stochastics (WIAS) and the Zuse Institute Berlin (ZIB). MATH+ continues the success stories of the renowned Research Center Matheon and the Graduate School Berlin Mathematical School (BMS).