Knot Theory

 Knot Theory is a puzzle about staying ahead of a mess that keeps growing on its own.

  Drag any node to reposition it. Clear every crossing and the board resets with a fresh wave of nodes arriving faster than before, so there's never one fixed puzzle to memorize, just an escalating tangle you have to keep ahead of. Fall behind and let 20 crossings pile up at once, and the run ends.  Every clear reveals a real fact about knot theory, from why a shaken cable ties itself in knots more often than you'd expect, to how DNA gets crammed into spaces far too small for it without real enzymes to untangle it first.