The 7 Continents of the World

Here I will post a series of (mostly) simple challenges to amuse you in the run-up to Christmas. I'll try to post one each weekday.
DDRM
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Joined: Mon 02 Apr 2018, 18:04

The 7 Continents of the World

Post by DDRM »

After ditching his plan to use the “Three words” method, Santa decides to deliver his presents by doing a whole continent at once. Unfortunately, his sleigh has limited range, and can’t cross large ocean routes. Consider the map of possible intercontinental routes below. Is it possible for him to start and finish his trip in Europe using every route exactly once? If it is, what is that route? If it is not, can you make it possible by adding or removing exactly one route?
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