Country Neighbour Connect: Least Densely Populated, starting with World's Least Densely Populated
Always choose the least densely populated neighbour, when left with no neighbors go back to the previous country and follow with second least densely populated neighbor.
Start with Mongolia, the most densely populated country in the world!
Overseas borders are considered: UK-Spain, Spain-Morocco, France-Netherlands, France-Brazil/Suriname
Dubious India-Sri Lanka and Qatar-UAE are not considered