Two endpoints
Press either gold dot. The line starts there. To complete, the line must end at the other gold dot — both endpoints connected by one stroke.
Try monostroke.
A real puzzle from the prebundled level pack. Three rules, one stroke, in your browser.
Length
0 / 21
- Connect both endpoints (filled gold dots)
- Visit all checkpoints (hollow gold rings) 0 / 2
- The line cannot fold back to touch itself
How it works
One stroke. Find the longest path.
monostroke is a single line drawing puzzle. Every level is a small grid with two endpoints and a set of checkpoints the line must visit. The line is one continuous stroke that never crosses, jumps walls, or folds back to touch itself. The longer the connecting line, the more stars the level awards.
This browser demo is one curated puzzle from the prebundled endless pack: a 7×5 grid with two walls, two endpoints, two checkpoints (visit both to complete), and a 21-cell three-star reference path. The full app on iOS and Android adds 60+ endless levels, three challenge worlds (Blueprint, Mirror, Tally), a five-floor Gauntlet, and seven more mechanics: ice, veils, switches, portals, mirrors, and adjustable checkpoint quotas.
No self-touch
The line cannot fold back on itself. The head can only enter cells that do not already neighbour the line. No T-shapes, no loops — pure single-stroke topology.
Three stars at 21
Star grading is by path length. A short connection earns one star; a near-maximum stroke covering 21 cells earns three.
Get monostroke
Free on iOS and Android.
Hundreds of puzzles. Eight unlockable themes. No LiveOps, no pay-to-win. Plays offline.