Below you can find the problems and answers of previous years.
| 2023: | Problems | Answers (partially Dutch) |
|---|---|---|
| 2022: | Problems | Answers |
| 2021: | Not organized | – |
| 2020: | Problems | Answers |
| 2019: | Problems | Answers |
| 2018: | Problems | Answers |
| 2017: | Problems | Answers |
| 2016: | Problems (partially Dutch) | Answers (partially Dutch) |
| 2015: | Problems (partially Dutch) | Answers (partially Dutch) |
| 2014: | Problems | Answers |
| 2013: | Problems (Dutch) | Answers (Dutch) |
| 2012: | Problems (mostly Dutch) | Answers (mostly Dutch) |
| 2011: | Problems (mostly Dutch) | Answers (mostly Dutch) |