Drag from one dot to the other one of the same color.

📖 How to play Flow

Each color has two dots. Connect them by dragging your finger or mouse from one to the other.
Paths cannot cross: if you pass over another one, you cut it.
To solve the level you must connect all the colors and, in addition, fill all the squares on the board.

💡 Tip: start with the colors that only have one possible path (the ones in corners and edges) and leave the center for last.