I'm interested in QR codes for an application where two playing cards each contain HALF of a QR code, and when different combinations of cards are placed adjacent to each other to make a full code, they link to different sites.

So, for example, if there are two left-side cards and two right-side cards, then there would be 4 different possble QR codes.

Is this technically possible? I'm worried that the algorithm used for error correction might not allow this.