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Question about Base Game Longest Road - Can a continuous road be circular?


In principle, yes; but on Catan the circle is a hexagon. When counting the individual road pieces, it doesn’t matter whether or not they are built in a more or less straight line - what matters is that they establish an uninterrupted connection between two intersections. This is why 6 road pieces connected in a hexagonal fashion still count as 6 road pieces.