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 
when you accepted st niklaas for sint niklaas it stopped accepting st nicolas for that city (and I type that because there are 2 towns in Belgium with that name so you get both at once but now you no longer can)
Yes can only have a couple options for each city.
I’m italian and I can guarantee that this score for Italy of 99,86% is 99,86% fake, it’s impossibile to know so much without cheating!!!!!!!!
It’s a given that the quizzes are full of fake scores… always by the same names. Play to the best of your abilities and try to ignore them until (and if) a better solution is found.
allora studia!