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 
russia should use federal subjects not federal districts, romania should use counties instead of development regions, and republic srpska should be allowed for bosnia’s largest division
Yeah i wanted to make the divisions kinda match between countries, so they are basically the largest divisions of each, in a few cases they may technically not be an administrative first-level division, but I didn’t want countries to have larger divisions than the ones shown in this quiz.
romanias development regions are purely statistical
yes I realize that, some others are not ‘official’ as well but wanted to have the ‘largest’ regions for each country.
there is actually a standard list of these divisions, ISO 3166-2
yes, but I’m not going by that 🙂 didn’t want any with tons of divisions – some first-level are well over 100.
I was robbed of the answer for Uzbekistan because it didn’t accept a K instead of a Q. The K is much more common in English.
will add that as an answer