1) No country appears more than once
2) To properly complete the quiz you must never write down a country if you're not 100% sure it's the one that goes there!
A: Unconnected countries have been greyed out, all other countries are answers B: All answers belong to a horizontal group. Groups have size 5 except one that has size 4 C: Each column contains countries with the same colour as the cell on top (eg the left-most column contains countries that are red on the map)... D: Most countries border the country in the red column of the same row; the ones that don't have a purple border if no arrows point at them otherwise they have an orange border E: Arrows between cells 'join' bordering countries that are adjacent horizontally, vertically or diagonally
F: This also applies to borders between column A and E; these are shown with 'external' arrows (going left from A in the left section, going right from E in the right section) G: The last group in the left half of the answers is repeated at the top of the right half
Note that even without seeing the colour of European micronations the quiz is solvable risking no more than one whammy
HINT: All adjacent rows are 'connected' by at least one 'non-purple' arrow so if a group can't border two other groups it must be in the first or the last row