# Talk:Earth–Moon problem

It says “ in a hypothetical future where each Earth country has a Moon colony which must be given the same color” but shouldn’t they be colored a different color for it to be a proper coloring of the graph that doesn’t color adjacent points the same color? 2600:1700:2EB0:1CA0:E44F:3D5E:5BB8:DB76 (talk) 23:16, 9 April 2025 (UTC)

The same color as the Earth country, not the same color as all other Moon colonies. —David Eppstein (talk) 23:53, 9 April 2025 (UTC)