Why We Picked One Line
One Line has no timer and no lives, so the only pressure is the space you have already spent. The interesting decision is usually the dull one — leaving room you do not need yet. What makes it work is how little it asks you to hold in your head at once. Nothing in it is designed to impress; it is designed to be solved, and that is why it is still listed. By the numbers: 131 of 172 on the puzzle shelf, 5.0 out of 5 from 6 ratings, and 407 plays.
How to Play
The page documents very little, so these are the things worth knowing before you spend time on it:
- Wait for the game's own first screen to finish loading before you judge the controls.
- The board arrives solvable and leaves solved, and the middle part is your own planning.
- If a placement feels forced, back out and try the other side of the board.
Editor’s Note
It runs in the tab you already have open, on desktop or phone, and keeps its instructions on the screen. Every puzzle here loads inside the page rather than a new tab, so the back button and the address bar stay put.
Written by the UGFJD editorial team for this page. The publisher’s own description follows below, unedited.
Publisher Description
Supplied by the game’s publisher; reproduced as-is.
A brain-training puzzle in which you draw 1 line, that will sharpen your wits.
In this free-to-play puzzle game, you merely have to draw one line. It is deceptively simple, yet profoundly deep.
Play through the extensive stages, sharpening your wits as you have fun.
