Play Trail online, free
Trail is a path-drawing puzzle on a grid from 5x5 up to 8x8. You draw a single continuous line that starts at dot 1, passes through the numbered dots in order and covers every square exactly once, and it can never cross a wall. Every puzzle has exactly one solution and is generated in your browser, so you can always work it out by logic. Easy boards have no walls.
How to play Trail
- Start at dot 1 and drag to extend the line one square at a time.
- Visit the numbered dots in order, and cover every square exactly once. The line cannot cross a wall.
- Drag back along the line to undo, or use Undo or Reset.
- Prefer not to drag? Tap a square next to the end of the line to extend it, or use the arrow keys.
- Stuck? Hint marks the next few squares of the solution.
Tip: Squares in a corner or beside walls have only one or two ways through, so start your reasoning there.
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