I didn't like this grid. It requires too specific knowledge. I work in an office that regularly makes outbound calls to countries across the world and I still didn't have much to go on here. That said, I did get one point, purely on the basis of knowing what connected France and UK.

Completely and utterly stumped by this. Failed to identify a single group and, once they wee revealed, the same was true of the connections. Too tough for us.

Incomprehensible

A nice idea, but one I think most would struggle to get a hold on in three minutes. Not one I enjoyed, sorry!