First choose the number of cities by typing ‘100’, ‘250’, '500', '1k' or 'all' – then try to achieve the highest population among the largest English cities (min 500 population) you chose. Quiz is not timed.
hugequiz Premium users have the option to choose any number of cities to play the quiz with (stats are processed but score isn't saved). Simply enter #(number of cities)# to play the quiz with any number of cities from 25 to the maximum. For example, to play the 300 largest cities, type #300# to begin the quiz and you will play it with the 300 largest cities. Entering #all# will play it with all cities - all cities will also be chosen for any number chosen above the total.
Quiz Takers 
Hi, one more suggestion. Idk if its possible but with two communes with the same name only one name is showing on the map, the other is popping but only colouring red without name.
Thanks for fixing the previous issue!
Little bug to fix: not every correct guess shows on map. Some are not visible and some only partially (eg. olny city area of a comunne).
Yeah I think it’s the outlines not being 100% complete. But it’s the only one I could find that is current with the current communes.
Maybe this would work: https://www.geoportal.gov.pl/pl/dane/panstwowy-rejestr-granic-prg/ (official SHP file on the bottom of the page)