I got them all just in time, but I wasted a lot of time guessing Central European countries. Checking afterwards I can see they are all super close to the sea compared to the correct answers!
I completely misread the question, I thought it just meant countries who were far away in their entirety. Then I clicked on the answers and was mightily confused to see China, Russia and especially the USA given that one borders TWO oceans!
Another excellent distances quiz - thanks!