Upon clicking START you will be shown 5 circles, one at a time, with increasing radii: 50, 100, 250, 500 and 1000 km. The object is to move the circle to the location such that it covers the most amount of people, based on Europe population density data. You are scored based on how many people you cover compared to the maximum possible (score is based on the ratio of people in your circle compared to max possible - score is not an exact ratio but falls faster than that).
PLEASE NOTE: ALL of Turkey is included in counting population (not just European portion), and the portion of Russia west of 61.5 degrees E (just east of Chelyabinsk). Nothing outside Europe (such as Africa or middle east other than Turkey) is included toward the population count within a circle.
Quiz Takers 
They are part of Denmark, they just don’t fill in on the map on the quiz cause they are smaller.
At the end of my game it still shows vatican city in the missed list.
The games stopped by itself when I reached 47/47.
Transnistria is a country especially if you’re counting kosovo which is in a weird UN state of not but is
None of the major quiz sites count it as a country so I don’t.
Sorry but acording to UN “Kosovo” is not a country
It’s regarded as a country by other large quiz sites, so I regard it as one as well.
According to MOST (101) countries represented in the UN, Kosovo is a country. The few holdouts are literally insane. It’s been 15 years. Time to suck it up and deal with it already.
Shouldn’t the game automatically stop once you have the 47 countries?
yeah it does – maybe just a one-time bug? i just ran it and it ended after 47.
Same has happened for me just now. Got all 47 and clock still counting down
very odd – i’ll take a look, but i’ve done it a few times and it always ends at 47. did it say ’47/47′ for the countries gotten?