Type 'easy' or 'hard' to begin the quiz. Easy is a 15-degree grid, hard is a 10-degree grid. Then, try to name the largest 50K+ cities in each square IN ORDER. To name a city, you must first click on the grid square to make it have a GREEN border. Then, type in the city answer for that square followed by a '.' (a period).
The squares will start with '0/5' (or maybe fewer cities if less exist in that square). Click on a square and enter the largest city in that square not yet answered (so, the largest city if you have yet to answer a city in that square). You will then have '1/5' and need to click on that square to name the 2nd largest city, and so on until you complete all the cities up to 5 (or less if less exist). If you name an incorrect city in a square it becomes 'locked' and turns red and you can no longer accumulate cities in that square.
You receive 1 point for the largest city in a square, 2 for the 2nd largest, and so on.
At the end of the quiz the largest remaining city you haven't named will be shown in each square.
Quiz Takers 
Please make a version, that’s completeable I timed out after 87 countries, and I wasn’t that slow. Make options so it’s also playable for just regularly nerdy people and not only insane geography braniacs.
I would not identify myself as an insane geography brainiac and can still easily complete the quiz inside the timelimit with several minutes left. Maybe you should take it as a challenge – its absolutely doable.
Are territories not except? Denmark wasn’t ok’d for me clicking on Greenland
Yeah some may not be, not sure if the outlines for the territories always take for the country.
great quiz, but the countries that do and don’t have markers seem a bit random. a marker for liechtenstein, singapore and antigua and barbuda would be nice
I got one wrong but I have no idea which one it was
if the counter on the right doesn’t increment after you double click the city you know it was wrong 🙂