this is a progress box from eagle autorouter. even if it says '100%', it's not actually done yet. same if it says 'completed', it's not actually done yet. 4 layers
@robotgrrl Ah yea the TopRouter is weird, it will try for a really long time to find a more optimal configuration, its sub routers try some funky shit that sometimes never resolves. At some point you just have to call it quits. 100% just means it managed to connect everything but not necessarily in an efficient way (the metric for the router being vias which is not necessarily a great way to quantify that)
@timonsku ahhh, interesting! thanks for clarifying that!