How to play
Hold any dot and drag along the lines. Cover every path exactly once and the puzzle is finished. There is no starting dot marked for you — finding where to begin is part of the puzzle.
Lifting your finger is not a mistake. Press the same dot again to carry on from where you stopped. Tapping a different dot does nothing on purpose, so you can rest your hand and think.
Reading the board
- Thick lines must be covered more than once. The thicker the line, the more passes are left; from three passes up, a small number appears as well.
- Arrows mean that pass can only be taken in that direction.
- Small numbers beside a line mean its passes must be taken in that order. The dimmed ones are not available yet.
- Rings with a letter are portals. The two rings sharing a letter are two ends of the same connection — drag toward the partner to travel. Each ring layer is one pass.
What the ratings mean
- Amazing — you used neither Restart nor Undo
- Perfect — you used one of them
- Good — you used both
Ratings only ever go up. Replaying a level can improve your rating but never lower it, so nothing in your record is permanently lost. The timer only starts when you first touch the board — looking at a puzzle and thinking costs nothing.
Is my progress safe?
Progress is saved on your device and, if you are signed in to iCloud, in your own iCloud account. That means it survives deleting and reinstalling the app, and moving to a new phone.
If progress ever looks missing on a new device, check that iCloud is signed in and Drive is turned on, then reopen the app — the game merges the two copies rather than replacing one with the other, so nothing already earned is lost.
I am stuck on a level
Tap ? in the top bar. Pressing it once circles the dot the solution starts from; pressing it again circles the dot it ends on. There is deliberately no step-by-step hint — the puzzle is the thinking, and every level has been checked to be solvable.
Requirements
iPhone with iOS 16 or later. Portrait only. The game works completely offline; iCloud sync and Game Center are optional and the game plays normally without either.