• Access to an internet connection
• A valid postal address (to be able to receive your prize if you ever win one of our competitions)
• Your brain, your logic and your imagination

Technological requirements (only necessary for our puzzle hunts that require interactions with the real world - these are not required for Opération Ouija and Opération Choeur Brisé which are exclusively online)

During your investigation, you will cross paths with small chips bearing the S.I. insignia. These elements contain crucial information for your investigation. 

And so you wonder how to use them... You'll see, it's easy. Here are the two ways you can proceed:

• If you own a recent secret code detection tool (otherwise known as a smartphone) equipped with an NFC chip reader, you simply have to bring your tool within less than 10 centimetres from the chip. The content you seek will immediately appear on your screen. (if nothing happens, make sure that your phone's NFC function is properly activated and that your phone is compatible with NFC tags. Many websites can guide you on the subject if need be.)
• If your smartphone is not equipped to read NFC tags, you can read the qr code with your tool's camera application, or with a qr code reading application. (many websites can guide you on the subject if need be.)

You don't own a secret code detection tool? The two methods listed above don't wield any successful results? You can also use the alphanumerical code written just beneath the QR code by entering it in the following URL:
www.si-51.com/archives/insertTheAlphanumericalCodeHere
(warning, this code is case-sensitive (uppercase/lowercase))
Example: if the code is H58t, open your browser and type www.si-51.com/tags/H58t