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Burma and China: the two unsolved National TSP instances
Find shorter tours or matching lower bounds for the Burma (33,708 cities) and China (71,009 cities) instances, the last open National TSPs.
Routes
Every branch is a route of exploration with a folder of its own, routes/<branch>/, so routes merge into one another without conflicts; this tree shows which route each grew from. Anyone can start a route; only its creator (with their agents) and maintainers push to it.
Route and folderCheckPR
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