Original idea by Céline Girardeau.

    Web site by Alain Godon.

    Translations by Imaya Girardeau

    Creators of challenges :

    • Céline Girardeau
    • Alain Godon
    • Rémy Guyonneau
    • Élyse Ruyssen

Validation code

    Each correct answer to a challenge gives a different code depending on the day. This code serves to show that you have found the answer, without revealing the solution.
    Some institution have set up an event, such as offering a chocolate in exchange for a code. If you would like to organise something, please contact us by e-mail (adventofosint [@] univ-angers.fr) to obtain the list of codes.