One Stroke Challenge
- Browser game
- Free
About this game
Trace every edge of the shape with one unbroken glowing line — edges can't be reused, but dots can be crossed again and again. Plan your route like a Euler path: 24 handcrafted neon puzzles from warm-up triangles to the 32-edge Supernova, with undo, instant retry, and star grades for flawless strokes.
How to play
- Draw: press a dot and drag along a line to the next dot (mouse or touch)
- Undo: button or U
- Reset: button or R
- Next: tap or Enter
- Menu: Esc