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Europe

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France Circle Radius Population Challenge

Directions

The object of this quiz is to adjust each circle’s radius so it contains the target population shown at the right. When you click Start you will be shown a marker on a random populated France grid square (over 200K within France, courtesy of https://human-settlement.emergency.copernicus.eu/index.php). Also you will see an adjustable circle of radius 100 km to start. Adjust the circle’s radius by dragging it until it contains the target number of people shown – this target will be between 50K and 5 million people. Then click submit. You are scored on how close your circle’s population is to the target. Circle population is tallied by totaling all output areas within that circle.

NOTE – This quiz does NOT include any people in other countries, ONLY France.

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Germany Circle Radius Population Challenge

The object of this quiz is to adjust each circle's radius so it contains the target population shown at the right. When you click Start you will be shown a marker on a random populated Germany grid square (over 400K within Germany, courtesy of https://human-settlement.emergency.copernicus.eu/index.php). Also you will see an adjustable circle of radius 100 km to start. Adjust the circle's radius by dragging it until it contains the target number of people shown - this target will be between 50K and 5 million people. Then click submit. You are scored on how close your circle's population is to the target. Circle population is tallied by totaling all output areas within that circle.

NOTE - This quiz does NOT include any people in other countries, ONLY Germany.

Europe Circle Radius Population Challenge

The object of this quiz is to adjust each circle's radius so it contains the target population shown at the right but ONLY within Europe. When you click Start you will be shown a marker on a random populated Europe grid square (there are over 90K 10x10 km grid squares used for the data, courtesy of https://human-settlement.emergency.copernicus.eu/index.php). Also you will see an adjustable circle of radius 100 km to start. Adjust the circle's radius by dragging it until it contains the target number of people shown - this target will be between 5 and 100 million people. Then click submit. You are scored on how close your circle's population is to the target.

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.

Europe 1K+ City Coverage

First choose a difficulty by typing ‘beg’, ‘int’, ‘adv, or ‘exp’ – Beginner is 200km radius, Intermediate 100km, Advanced 50km, and Expert 25km. Then, enter 1K+ population cities and all 1K+ population cities within that radius will automatically fill in.

hugequiz Premium members will see the 50 largest missed cities at the end of the quiz as large, purple markers.

NEW: Premium members can now also play a 3-hour time limit 'custom' coverage quiz of any distance from 5km to 500km, simply enter the distance followed by a '.' instead of choosing from one of the four levels, i.e. '350.' Quiz score is not recorded for the custom coverage option.

NOTE: the source citypopulation.de does not have a some Belarus/Russia/Ukraine smaller places such as villages so that data isn't available.

Too many cities? Try the 10K+ version:
Europe 10K+ City Coverage

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Too many cities? Try the 10K+ version: Europe 10K+ City Coverage

Too many cities? Try the 10K+ version:
Europe 10K+ City Coverage