How do you play One Line Puzzle?

Tap a dot to start drawing, then drag through adjacent dots to extend the line. Visit ALL dots to complete the level. You cannot cross your line or retrace any edge.

How many levels are in One Line Puzzle?

There are 50 handcrafted levels across 5 difficulty tiers: Easy, Medium, Hard, Expert, and Master. Grid sizes range from 3x3 to 7x7.

How does the star rating work?

3 stars = no hints used, 2 stars = 1 hint used, 1 star = 2 or more hints used. Try to complete each level without hints for the best rating.

Is One Line Puzzle free to play?

Yes, One Line Puzzle is completely free to play in your web browser. No downloads or sign-ups required.

Play One Line Puzzle Online Free - Connect the Dots Brain Teaser

ONE LINE PUZZLE

Connect all dots with one continuous line

Draw a single line through every dot on the grid. No crossing, no retracing. Can you solve all 50 puzzles?

HOW TO PLAY

1. Tap any dot to start drawing your line

2. Drag through adjacent dots to extend

3. Visit ALL dots to complete the level

4. You cannot cross or retrace your line

5. Use hints if you get stuck (costs stars)

6. Fewer hints = more stars!

★★★
No hints

★★★
1 hint used

★★★
2+ hints

SELECT LEVEL

Hint: 3

0 / 0

One Line Puzzle - Connect the Dots Brain Teaser

Level Complete!