One Line: Brain Puzzle Master

Connect all dots with one continuous line. Solve 300+ levels & endless puzzles in this addictive brain trainer.

One Line: Brain Puzzle Master One Line: Brain Puzzle Master is a relaxing one-stroke drawing puzzle you can play in Chrome. The goal is simple: connect all dots and draw every required path using one continuous line, without lifting your pointer. Each puzzle is a logic challenge that rewards planning, pattern recognition, and clean execution. If you enjoy “one line” games, “one stroke” puzzles, connect-the-dots brain teasers, and line drawing logic challenges, this extension is built for you. It starts with beginner-friendly boards and steadily introduces new rules that turn a simple line into a deeper strategy problem. How to play - Start on any dot and drag to another connected dot. - Continue until all edges are drawn. - Finish the entire puzzle in a single stroke. Some puzzles allow revisiting nodes, but every rule must be respected. Puzzle modes and progression - 7 structured chapters (Basics → Master) with carefully designed levels. - Endless mode that generates new puzzles after you finish the chapter set, so you can keep practicing. - Progress is saved locally so you can come back anytime. Special mechanics (more than a standard one-line puzzle) - One-way paths (arrows): certain edges must be traveled in the indicated direction. - Locked edges (red): these edges can only be drawn when all other non-locked edges are already completed. - Frozen edges (blue): once you draw one, undo is blocked for that move—plan ahead. - Multiple-visit nodes: some nodes require extra visits to solve the graph correctly. Hint system that teaches Stuck on a tricky board? Use the hint button to reveal an animated solution path that shows the next correct sequence. Hints are limited so the game stays a real brain trainer, not an auto-solver. Clean, comfortable experience - Smooth mouse, touchpad, and touch controls on desktop. - No timers, no pressure: play at your own pace. - Light/dark appearance adapts to your system theme. - Works offline because the game runs locally inside the extension. Privacy and transparency - No special Chrome permissions are requested. - Your progress and language setting are stored locally in your browser (local storage) and are not sent by this extension. - On install or uninstall, the extension may open gamezoo.net in a tab. The “More Games” toolbar button also opens gamezoo.net. Made for Chrome - Click the extension icon to launch the game in its own page. - Use the built-in fullscreen toggle for a distraction-free play area. - Designed for quick sessions: solve a puzzle in minutes, or start an endless streak. If you like classic logic puzzles, you will feel at home here. These are graph puzzles inspired by one-stroke drawing problems (often called an Euler path or Euler trail). Plan your route, avoid dead ends, and learn how rules change your start. A calm, satisfying mix of line art and reasoning. Whether you want a short break or a focused logic workout, One Line: Brain Puzzle Master delivers satisfying one-stroke puzzles that are easy to start and hard to master.