UPDATE: Still sorry for the delay

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Due to staffing problems, we are currently not able to publish the solutions, contact all winners, and send out your prizes.

UPDATE (22 June, 2022): Unfortunately, we are still dealing with the aftermath of the staff shortages in winter and spring. However, we are working hard to complete the solution booklet.

Please consider the very good solutions provided by the Mathekalender Community on the discussion board.

We apologize and kindly ask for your patience!

Thank you very much,
MATH+ Advent Calendar Team