One Line

Plan one continuous route and fill every open cell without visiting any cell twice.

WeightPlay Original Game Guide

One Line

One Line is an original 30-stage grid puzzle starring Rainbow Hop Mimi. Begin on the glowing paw, move through edge-sharing open cells, and color the entire board with one continuous route without visiting any cell twice.

How to Play

Choose an unlocked puzzle from the horizontal Stage rail.
Press the glowing paw cell and begin tapping or dragging.
Move only through open cells that share an edge with the current cell.
Move back over the previous cell to undo; do not revisit other colored cells.
Fill every open cell to clear the stage.

Campaign

Thirty original grid puzzles grow through corner planning, stone blocks, longer routes, narrow exits, and deceptive early choices. Restart and Show Hint are free, completed stages remain replayable, and best stars plus times are stored in this browser.

Player and Save Information

Recommended for ages 9+ and family play. One Line practices spatial reasoning, planning, and sequencing through play. It requires no account and uses no formal ability ranking.

Frequently Asked Questions

Can I release while planning?: Yes. Your partial route remains on the board so you can continue after thinking.
Can I move diagonally?: No. Moves connect only open cells that share an edge.
What does Show Hint do?: It highlights the next cell in one possible complete route and limits that attempt to two stars.
Does progress save?: Yes. Unlocks, clears, best stars, and best times are stored locally in this browser.