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Concealed Messages — Vigenère's Night Sky Level X
by K. Schmeh, published on 2012-05-01
In 1586 the famous French mathematician Blaise de Vigenère published a picture of the night sky and claimed that a message was concealed in it. Can you find out how to decipher this message?
A solution to this challenge was published on 2016-07-15. Solutions can still be submitted and verified, but no points will be awarded for them.