How to play
Place the joining threads you need, then start at the green ring. Trace every fixed and placed strand exactly once to reach the flag. Tap a thread or drag between rings. You may revisit a ring, and releasing your finger lets you resume from your current position.
Think one move ahead
Ordinary threads must form one connected network. A route that returns to its start needs an even number of connections at every ring. A route ending elsewhere needs odd connections only at its start and finish. Special threads and rings add their own passage conditions.
Save the exit for last. Twin threads are separate strands, and the two paths of a bridge ring do not connect.
120 stages and custom challenges
Learn the controls and discover new mechanics as you progress. Replay cleared stages for more stars and personal bests, or share a seeded custom puzzle with a friend. Progress is stored in your current browser.