First choose any World 50K+ pop city by entering it and choosing it in the drop-down box. Then, name any World 50K+ city in each 500 km circle/ring as the rings expand outward from your city of choice, trying to name SECOND LARGEST city in each circle. The first circle will include your city of choice as a possible answer.
PLEASE NOTE - You must type a '.' (period) after each city to submit it to prevent answering another city with a name you would be have to type to get your answer. If multiple cities have the name you submitted, only the largest one will be counted.
You accumulate points based on the population of the city you named in relation to the second largest city in the circle. A smaller city’s point total will be the ratio of its population to the largest, so if you name a city of 75K people and the largest city has 100K, you get 75 points. Naming the largest city will get you points based on the ratio of the 2nd largest city's population to the largest city's.
When you run out of time or end the quiz, you will see the current ring’s 2nd largest city at right (under ‘Answer Stats’ by your coordinates).
For example, if you choose ‘Paris’ – you will be shown a circle of radius 500 km centered at Paris. Naming any city in this circle (including Paris) will cause another ‘ring’ of radius 500 km to appear outside that circle, however - you will want to try naming the SECOND LARGEST city you can to get more points. After completing that circle, you now need to name any 50K+ World city in the new ring (but not within any previous circles/rings), again trying to name the 2nd largest city. If there are not two cities within the next ring of that distance, the ring will keep expanding by that distance until two cities fall within it.
Quiz Takers 
137 and im quite satisfied. Nice one!
It’s frustrating how it’s down to chance. I know where Andorra, Luxembourg, and Lichtenstein are in relation to each other, but I need Spain, France, and Germany already to get them placed right. They don’t have unique geography that makes them stand out like Qatar is the “middle finger” going up into the body of water & Bahrain is the island next to it. I’m pretty happy that I know what continent every country goes to & I know at least the general region of all the islands. Some are so tiny I have to use my Apple Pencil to click them properly.
Second time through and it didn’t recognize the DRC. Kinda hard to miss that one.Bug?
I just tested it and it detected it fine.
its either monaco or san marino that gets me
this is really hard and I know every country in the world and I only got 161 I tried 🙁
Other geo games websites are better, but this is soo good, lots of games.
Same I Know Every Country i watch jsag
This one is very challenging…took me probably around hundred tries to finally get it without mistake. Along with perfect score and ruined life im taking with myself new fears of Burundi, E-Swatini and Bhutan. Thx admin 🙂
Nothing ruined! You were learning! 🙂
You may want to consider adding a pass option. Some countries are practically impossible to pinpoint unless another country has already been added.
Yeah but that’s part of the challenge I want – so if you get stuck with a country like that it makes it particularly difficult. I don’t want to be able to guess the easier countries and come back to a smaller one when it’s easier to guess.
There’s a big difference between hard and impossible. The Vatican and San Marino are impossible to get without Italy already being selected. Liechtenstein is another one that’s impossible. You highlight islands. They would be easier to get unhighlighted than the 3 microcountries listed above.
You can zoom in really far, that helps especially on the Vatican case. Others you have to at least know where some big city is nearby and then take a guess, like Dornbirn or St. Gallen on Liechtenstein or Rimini on San Marino
Vatican and San Marino are not too difficult at all, you can simply zoom in enough on Rome and know where the Vatican is in relation to it…you can even see St Peters clearly on a zoomed in view..same with learning where San Marino is based on the surroundings.
That doesn’t seem to work if you’ve already had Italy – at least for me in that case you’re just zooming in on green.
Vatican is easy…zoom in in Rome and look for Saint Peters’s square!
Seems like it’s mostly based on luck
There’s an element of luck (Andorra is easy if you already have both Spain and France, and very hard otherwise) but mostly it’s triangulating from coastlines and natural boundaries like rivers.