How to play one-line path puzzle

The whole idea

Start at 1. Join the numbered dots in order, and finish at the last number.

Visit every square once. A path can move sideways or up and down, but never diagonally.

Drag to draw. Tap along the same row or column to fill a straight section. Drag back to undo one square.

Everyone gets the same daily puzzle at midnight UTC. Your progress stays in this browser. Levels give you another board whenever you want one.