In response to a very inspriring mail-riddle from
Mathias Wien and Marc Poppek Böhm creates a crossword
puzzle in 1997 with over 100 questions. These partly
very specific questions mounted on cards were posted
in several stages. The solution was an invitation to
Tübingen.
There are three copies of the crossword puzzle, apart
from Wien and Poppek, Böhm's parents and Anke
Stenzel each received a copy.
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