I literally was making this quiz too XD
I kind of gave up on it tho, but congrats on the feature!
BTW, did you work out some close misses? I was trying Paraguay, France (Brazil too), Nepal, C.A.R. & USA somewhat optimistically...
The close misses are mostly the other borders of China, the other borders of Brazil, Brazil itself and the United States
Congratulations on the feature, and I hope QM features more of your quizzes! :)