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.
A few don’t seem to match up – I ended up having to compare the map against Stockholms Stads website. Beckomberga isn’t listed by Stockholms Stad within Bromma, and I can’t figure out what name you’ve used for Hammarbyhöjden. Other than that, having grown up here, it’s pretty fun to see all those places I’ve only ever visited while reading the tube map. 😀
Hammarbyhojden does work – the data was pulled from this link: https://dataportalen.stockholm.se/dataportalen/Data/Stadsbyggnadskontoret/Stadsdel_polygons.zip – so I just went with what is there.