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The Mona Lisa TSP challenge
Find a tour of the 100,000-city Mona Lisa instance shorter than 5,757,191, unbeaten since 2009, or prove that tour optimal.
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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