A friend challenged you to a knot

Untie the exact same knot, then compare times.

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Get Knot Fun
  1. Install Knot Fun from the App Store.
  2. Come back and tap your friend's original link again — the knot will open straight in the game.
  3. Link not cooperating? Open it in Safari/Chrome (in-app browsers can block the handoff) and tap it again.