Type 'easy' or 'hard' to begin the quiz. Easy is a 10-degree grid, hard is a 5-degree grid. Then, name any 50K+ African city in each grid square which fits the category label for each square.
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.
If I missed an island of 100 sq km or more, let me know, will add it.
I’m pretty sure you missed Lamu Island (in Kenya), sources say it’s about 100 sq km.
Do you have a source or two with URL?
Should Aldabra Atoll be on here? It’s 155km2
https://en.wikipedia.org/wiki/Aldabra
Added.