Puzzle · 6 stages · 36 levels

ChromaFlow

Join every pair of matching dots with a pipe. Pipes can't cross, and every square must be filled. Each level has exactly one solution.

Choose a stage

Press on a dot and drag to the dot with the same colour and number. Pipes move up, down, left and right — never diagonally.

Pipes can't cross. A level is solved when every pair is joined and the whole board is covered.

Drag back along a pipe to shorten it. Drawing across another pipe cuts it, and it grows back if you retreat. Undo and Reset are always there.

Draw each colour in one go with no hints for 3 stars. Solve 4 levels in a stage to unlock the next, all the way up to 10×10.