For all the Dutch/Belgian people who are interested in the Cards, they are available on bol.com as well!
A Single Card
A set containing one of the seven Cards, and a Users Guide. A great way to try out The Cards (with low shipping fees)! Pick your favourite using the dropdown menu above! The last picture shows the general level of difficulty of each Card, and the number of letters their solution consists of. Beware that the Letters Card is a meta-card, and can only be played using either the alternative clue made for it, or the solutions of all the other Cards.
To solve them you will have to use all of your puzzle-skills extensively, from out-of-the-box-thinking to deciphering and researching. To help you out during all the puzzling, you can find step-by-step-hints and spoiler-free solution checkers on this website.