First choose a difficulty by typing ‘beg’, ‘int’, ‘adv, or ‘exp’ – Beginner is 50km radius, Intermediate 25km, Advanced 10km, and Expert 5km. Then, enter 500+ population Wales cities and all 500+ population Wales cities within that radius will automatically fill in.
hugequiz Premium members will see the 25 largest missed cities at the end of the quiz as large, purple markers.
Premium members can now also play a 3-hour time limit 'custom' coverage quiz of any distance from 5km to 100km, simply enter the distance followed by a '.' instead of choosing from one of the four levels, i.e. '35.' Quiz score is not recorded for the custom coverage option.
Quiz Takers 
I encountered a weird error – I typed in Spain and it brought up a list of what I presume to be the largest cities per letter per country, sorted by population. I typed in a bunch of cities it would “take” my answers but nothing was revealed and my score was [answers]/0. I kind of have an unbeatable score in Spain now though, lol.
Forgot to add – issue was gone on refresh. Probably just an issue with not loading the country – the country listed was on the side, but it was clearly pulling from all European countries.
hmm must be a one-off bug – i’ll remove that score.
For the Netherlands, you included a category which starts with an apostrophe (‘). The answer for that character is given as ‘s-Gravenzande, while ‘s-Hertogenbosch is the given answer for ‘S’. ‘s-Hertogenbosch is correctly written with an apostrophe though, and should be the answer for that category instead of ‘s-Gravenzande. Or you could remove the ‘-category entirely.
yeah I’ve fixed this – the apostrophe shouldn’t have been included as a letter.