La Folie du jeu : descente aux enfers In this challenge, we are given a Solidity code (available here). In this code, we first initialise the contract using the constructor and by giving it the...

Art In this challenge, we need to fing the Ethereum address of the artist of an NFT called blanc avec des liserés blancs transversaux. First I tried looking some websites that host NFTs. I foun...

Le Loup et le renard Secret in the source code ? This is a basic web challenge. We need to recover the flag by any means. First we arrive on the main page, we click on start and we have a form:...

La Vie Française When we arrive in this challenge, we access a web page where we can create an account by clicking on Postuler: Because I am someone really original, I created the user a with...

L’Académie du détail In this challenge, we arrive on a web page. We have login page available, and we can connect with any credentials we want (ex: a:a). We now have a tab called Liste des membr...

Fuite en 1791 In this challenge, we arrive on a web page where we can’t access the file because of the link that is expired: Just adding a big expiry date after the signature will give us acc...

Un Vol ? In this challenge, we need to find where Arsène Lupin, the gentleman thief, hide his treasure. For that, we have access to 6 images that can be found here. We can locate all images as ...

Mentions gastronomiques This challenge requires us to recover the price of the meal that Margot Paquet ate. This was a bit tricky because there was an American lady that is named also Margot Paq...

Les OSINTables In this challenge, we need to find the address of Causette in the image: We can notice that there is the number 83 in roman number VXXXIII (V=50, X=10, I=1 => 50+3x10+3x1=83...

Le Tour de France On this chall we are given a picture of a road sign that we need to locate: A quick search on google map by typing E17 E21 besançon we find a link to E17 & E21 Heading ...