Type 'easy' or 'hard' to begin the quiz. Easy is a 2-degree grid, hard is a 1-degree grid. Then, try to name the largest UK 1K+ 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 
I am confused about the absence of cities like Tirana and Lyon which should be in this list based on population.
I’ve remade the data for this quiz, Lyon is top 100, Tirana is not.
Kick Russia out and we are golden…Apart from that great quiz
Tbh that’s what make sit interesting at least
why?
Great quiz but way too little time. 6 seconds per city is just not enough to zoom out, zoom in and search.
I’ll bump it up a little bit.
I don’t think cities like Chelyabinsk belong to Europe as they are east the Ural mountains
It’s a judgment call – they are very close, and other popular quiz sites use them as part of Europe.
it seems to give 99 instead of 100 even when distance is 0 km, is that on purpose?
also when the time went to 0 it shows 0:-1 says Finish all cities to submit score and the quiz doesn’t end