Hubbard
How to play Four Colour
- Dark outlines and region numbers show the complete shape of each clickable area. Tap anywhere inside one area to cycle its colour.
- Regions that share an edge cannot use the same colour. Regions touching only at a corner may match.
- Dotted regions are fixed clues. The puzzle checks itself as soon as the whole map is valid.
Your first useful move
Work on regions with the fewest available colours first. Regions that share an edge must differ, but meeting only at a corner does not make them neighbours.
Playing on HubbardGames
Open a Library board to find this game’s controls. The how-to-play button keeps the rules close by while you solve, so you can check a detail without leaving the puzzle.
Choose your difficulty
The Library shows the available difficulty levels for this game. Choose a board that suits you, then return for another when you want more practice.
Can I practise without affecting the league?
Yes. Choose a puzzle from the Library to practise this game. Library practice does not add league points. You can return to an unfinished puzzle later.
