Three locked boxes one inside the other with riddles printed on the box's faces, solving the riddles lead to the lock's combination. On the bottom of each box, there are QR codes.scanning the QR code leads to a web page containing progressive hints.
The challenge is suited for ages 16 and up' the riddles are not easy and are built on a variety of knowledge areas. Any source of information can (and should) be used to solve the challenge. Internet connection is necessary for some of the riddles and for all of the hints.