Brain Test: One Line Draw Puzzle
Draw the whole shape in one stroke, without going over a line twice.

In this engaging one-line puzzle game, challenge your brain by drawing shapes in a single stroke without lifting your finger. Each level presents a unique shape that must be drawn in one continuous line, testing your logic and creativity. With increasing difficulty, you’ll need to plan your moves carefully to solve each puzzle. Perfect for players of all ages, this game offers hours of fun while improving problem-solving skills. Can you master the art of drawing each shape in one go?
Controls
Drag along the lines with the mouse or a finger.
How to Play
- Count the lines meeting at each junction.
- Find the junctions with an odd number.
- Start at one of them if there are two.
- Draw the shape in one continuous stroke.
Tips & Tricks
Count odd junctions before drawing. If there are exactly two, start at one — that single rule solves most of these levels outright.
Frequently Asked Questions
Can every shape be drawn in one stroke?
No. It works only when zero or exactly two junctions have an odd number of lines meeting, and the levels are built around that.
Where should I start a level?
At an odd junction if the shape has two of them. If every junction is even, any starting point works.