Your next path

Start a fresh board. Each size has three puzzles to explore.

One line. Every square.

Start at checkpoint 1. Drag, or tap neighbouring squares to extend your path. Move up, down, left or right; diagonals aren’t allowed.

Visit the numbered checkpoints in order. Fill every square exactly once, finishing at the final checkpoint.

Tap an earlier square to rewind to it, or use Undo for one step back. Restart puzzle clears your path on the same board.

Nudge marks a useful next square. If your route is blocked, it shows where to rewind. There’s no timer or penalty.

With a keyboard, use arrow keys to move focus and Enter or Space to select a square.