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Previous problems

If you cannot wait for the competition and want to start solving some problems now, or want to practice, we hope that these problems from previous PLANCKS editions will help.

From 2017 in Graz, Austria: Problems

From 2016 in Bucharest, Romania: Problems + Solutions

From 2015 in Leiden, the Netherlands: Problems + Solutions

From 2014 in Utrecht, the Netherlands: Problems + Solutions