Dots Line

Dots Line is a one-stroke puzzle from the connect-the-dots family. Every point on the screen has to end up connected by lines, and the whole thing is done in a single continuous movement, without lifting your finger or letting go of the mouse.

On top of that comes a second restriction: no line may be drawn twice. The pair of rules is what gives the puzzle its bite. Retracing is the obvious escape from a dead end, and here it is not allowed, so the order in which you visit the points matters from the very first stroke. The developer describes it as a game of intelligence and ingenuity, and the page for it carries an open request for feedback, asking players to say what should be added to the game or taken out of it.

Press down on a point, using the mouse on a computer or a finger on a phone, and drag to draw. Keep the stroke going from point to point without letting go. Every point has to end up connected, and no stretch of line may be traced a second time, so the full figure is meant to be finished in one go.

The two rules work together: you cannot lift off and you cannot go back over a line. Before pressing down, run a possible route past your eyes and check that it reaches every point without retracing. If it does not, picture the same route from a different starting point.

A one-stroke connect-the-dots puzzle. Portrait frame (540 by 960). The developer lists a mouse for PC and finger dragging for mobile. No level count, modes or other features are mentioned anywhere.

All Dot Connect Puzzle Game also has you join every dot with one touch, adding puzzle packs and a daily challenge, while Link Flow asks for lines between dots that recreate a target pattern.