A really fun quiz to take! Finished with 19 seconds remaining! To be honest, my first try had the lucky obvious countries on the square. For example, Russia, China, USA, Canada, Australia, etc.
Because in the description it stipulates "Excluding overseas territories". Originally denmark was accepted for those squares but others complained that this was unfair to other overseas territories
@Stewart In the square that has the tip of the Malay Peninsula and the top of Sumatra, Vietnam isn't accepted even though its tip is clearly in the square, am I just seeing things? Also, just for clarification why does it include Puerto Rico as part of the U.S. if it's a territory?
https://www.jetpunk.com/user-quizzes/176412/countries-in-random-rings-of-the-world-map
But what do you expect from a Filipino XD
How is French Guiana an exception?