Dot Link

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Dot Link is a relaxing line-drawing puzzle. Each board has pairs of coloured dots, and your job is to join every pair with a path. Lines cannot cross or overlap, and the board is only solved when every single square is covered. Boards are generated fresh each time and always have a full solution, from small 5x5 warm-ups to tricky 9x9 boards with a dozen colours. Draw each line in one clean stroke for a bigger score.

How to play

  1. Pick a difficulty and press Play.
  2. Drag from a dot to start a line of that colour.
  3. Draw through empty squares until you reach the matching dot.
  4. Lines cannot cross. Drawing over another line cuts it back.
  5. Connect every pair and fill every square to win.

Controls

Computer
Drag with the mouse to draw lines. Or use the arrow keys to move the cursor, Space to pick up a dot or line, arrows to draw, Space to let go. Z undoes, H hints, R resets.
Phone and tablet
Drag your finger from a dot to its partner. Use Undo, Hint and Reset below the board.

Tips

  • Dots on the edges and in corners usually have only one sensible route; draw them first.
  • If a pair is close together, the line between them often needs to take the long way to fill space.
  • An empty pocket that no colour can reach means a line has to be rerouted.

Questions

Is every Dot Link board solvable?
Yes. Each board is built from a path that covers the whole grid, so a full solution always exists.
Do I have to fill every square?
Yes. Connecting all pairs is not enough; the board is solved only when no empty squares remain.