Challenges and solutions of the previous MATH+ (and Matheon) Advent Calendars
- Challenges and Solutions 2023 (PDF, 1.7)
- Challenges and Solutions 2022 (PDF, 10 MB)
- Challenges and Solutions 2021 (PDF, 9.4 MB)
- Challenges and Solutions 2020 (PDF, 7.8 MB)
- Challenges and Solutions 2019 (PDF, 9.7 MB)
- Challenges and Solutions 2018 (PDF, 9.4 MB)
- Challenges and Solutions 2017 (PDF, 8.0 MB)
- Challenges and Solutions 2016 (PDF, 9.8 MB, in German)
- Challenges 2015 (PDF, 2.0 MB, in German) and Solutions 2015 (PDF,1.0 MB, in German)
- Challenges and Solutions 2014 (PDF, 5.0 MB, in German)
- Challenges and Solutions 2013 (PDF, 6.7 MB, in German)
- Challenges and Solutions 2012 (PDF, 9.4 MB, in German)
- Challenges and Solutions 2011 (PDF, 5.2 MB, in German)
- Challenges and Solutions 2010 (PDF, 9.4 MB, in German)
- Challenges and Solutions 2009 (PDF, 6.0 MB, in German)
- Challenges and Solutions 2008 (PDF, 3.0 MB, in German)
- Challenges and Solutions 2007 (PDF, 3.4 MB, in German)
- Challenges and Solutions 2006 (PDF, 3.2 MB, in German)
- Challenges and Solutions 2005 (PDF, 2.1 MB, in German)
- Challenges and Solutions 2004 (PDF, 2.9 MB, in German)