Type 'easy' or 'hard' to begin the quiz. Easy is a 15-degree grid, hard is a 10-degree grid. Then, name any 50K+ World city in each grid square which fits the category label for each square. Grid will be randomly placed each time the quiz is played.
LETTER: means the city starts with that letter.
NUMBER RANGE: (such as 2-5, 10+) means the city contains that many letters (excluding spaces and special characters).
POPULATION RANGE: (such as 250-500K) means the city has that range for its population.
2+ WORDS means the city name has 2 or more words (words denoted by a space or hyphen).
At the end of the quiz the largest population missed answer will show in each square.
Quiz Takers 
No Osaka, Buenos Aires, Manila, Chicago, Paris etc… but Chinese cities like Urumqi and Shijiazhuang are? I mean, I get it… there are a lot of people in China, but something just seems off there.
These cities’ city proper population is not nearly as large as their metro population – and on my site city proper is generally used.
If you don’t live in China, or study China for a few days before, it’s impossible.. who knows which is which outside the well known ones.
Metro pops would be a little easier and less China centric
got 71/100, china is brutal + a couple of misclicks and mixing up where Hyderabad and Bengaluru
WHERE IS OSAKA, SOME SOURCES CONSIDER IT TOP 10 IN THE WORLD
city proper populations per citypopulation.de Japan census it’s only 2.7 million
Nice Quiz, got 71, missclicked 1 in egypt 3 in India, but china is very difficult in the Shanghai and Guangzhou region with the many Markers.