Real boards
0:000 moves
Two shapes joined by a line can never share a color. That is the only rule.
- Squares are clues. You cannot change them
- Circles are yours. Each one needs a color
Tap to color, press and hold to empty.
Solved
No mistakes on the whole board.
0:00
Moves0
Tier—
Squares are clues. They are on the board from the start, their colors are correct, and you cannot change them. Circles are yours: the dashed ones are empty, and each one needs a color. A red ring appears when two shapes joined by a line share a color.
Your browser builds every board fresh, and each one has exactly one solution. Every tier uses the same four colors. The board grows from tier to tier: more nodes, and more of them to fill.