Free the World Map by 5 Relatively Largest Cities per Square

The World Map has been covered with 30x30 blocks! To free a block, type any of the 5 cities inside it that are furthest from a larger city.
Data for 1M cities from, data for smaller cities from
Cities with no more than 10,000 inhabitants are only considered if they have no larger city within 100 km
Covering squares are white if there are 5 possible answers, the colour changes towards red as the number of answers decreases towards 1
Quiz by scambigol
Last updated: March 24, 2017
First submittedMarch 24, 2017
Times taken793
Average score45.4%
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Level 44
Apr 12, 2017
this looks like a video game or something! How did you get the squares on the map?
Level 58
Feb 17, 2018
Happy Valley and Goose Bay are the same city