Ages 9–12 · Free to play

One Line

Trace every connection exactly once without lifting the route.

Getting ready…

How to play

Trace every connection exactly once without lifting the route.

About this activity

One Line: Use clues, test a plan, and explain how the pieces fit together.

What to practice
Use clues, test a plan, and explain how the pieces fit together.
Controls
Tap the controls or use Tab and Enter/Space. For movable pieces, select a piece and then its destination; supported pieces can also be dragged.
Choosing a level
Start with Easy. Medium and Hard extend the activity with more rounds, choices, or a larger challenge. You can change the level or restart at any time.

Big buttons and simple controls on phones, tablets, and computers.

How to play

Trace every connection exactly once without lifting the route.