A couple of minor-ish issues with the coordinates in the answer grid.
First, Helsinki is at 24°56'E not 25°56'E.
Second, since all the answers are arranged East-to-West, one would expect Tallinn (at 24°45'E) to come before Riga (at 24°06'E) but it appears afterward in the grid.
First, Helsinki is at 24°56'E not 25°56'E.
Second, since all the answers are arranged East-to-West, one would expect Tallinn (at 24°45'E) to come before Riga (at 24°06'E) but it appears afterward in the grid.
So those three lines should be:
Other than that, good quiz!