Colour Links
Link the colours, fill the grid: no path ever crosses another.
Draw a glowing path between each pair of dots of the same colour. The paths never cross and must cover the whole grid.
- Players
- 1 player
- Length
- 2 to 12 min
- Solo
15 days of full access, no account · No download
How to play
Goal
Each colour appears on two dots of the grid. Join every pair with a continuous path. Paths move from cell to cell (never diagonally), never cross and, together, must fill the whole grid.
Controls
- Drag from a dot or from the end of a path to draw; go back to erase.
- Running over another path cuts it; if you step back straight away, it reforms.
- Tap a dot to erase the path of its colour.
- Undo goes back to the previous drawing; Hint draws the whole path for one colour.
Formats
From 5 × 5 (Easy) to 14 × 14 (Diabolical). On a phone in portrait mode, the grid for the Medium to Diabolical levels becomes rectangular, with the same area, to give larger cells under your finger. Each colour also carries a small engraved symbol that tells it apart from its neighbours.
About the generator
Each grid is made by covering the board with random paths that never fold back on themselves (successive merges, splits and swaps), then a solver checks that the solution is unique: extending both ends, detecting dead ends and isolated regions, and analysing the cells that must be crossed. If the check runs past its time budget, the grid kept still has a guaranteed solution. The hint queries the same solver starting from your drawings so that it stays consistent with your progress.
Difficulty levels
- Easy5 × 5 grid with four or five pairs: to get the hang of drawing.
- Medium7 × 7 grid with six or seven pairs.
- Hard9 × 9 grid with about ten pairs and longer paths.
- Expert11 × 11 grid with about a dozen pairs that wind around each other.
- Diabolical14 × 14 grid with about twenty pairs: the great maze.
