Tap the Share icon, then "Add to Home Screen" to install.
Choose a level
Level 1
How to play
Every dot has a matching twin scattered somewhere in the circle — right on the edge, or tucked near the middle. Drag from one to the other to tie them together with a thread.
Threads can bend — but two threads may never cross. Cross one and it turns red; adjust your path before you let go.
Tap any thread (or its dots) to undo it and try a different path. Connect every pair to finish the level.