Flow
Connect every pair of coloured dots and fill the whole grid.✋
Weekly Top 10
- Loading…
Play to set a level, then submit it to the board.
About Flow
Flow is the connect-the-dots pipe puzzle that became a mobile phenomenon by making a genuinely hard idea feel effortless. Each board has pairs of coloured dots; your job is to draw a pipe joining every pair — and here is the twist that turns it from a doodle into a puzzle — you must fill every single square without letting any two pipes cross. Connecting the colours is easy; connecting them so that nothing is left empty is where the thinking lives. The best solvers work from the edges and corners inward, treating the grid as a space to be tiled rather than a set of dots to be linked. It is calm and tactile, with no timer and no failure state — just the quiet click of a board falling into place. This version ships with dozens of hand-made, guaranteed-solvable levels from gentle 5×5 grids up to knotty 7×7 ones, works with a fingertip or a mouse, and saves how far you have reached.
How to play
- Drag from a coloured dot to its matching twin to lay a pipe of that colour.
- Pipes cannot cross or overlap another pipe.
- You win when every pair is connected AND every square is filled.
- Drag back over your own pipe to erase it, or tap a colour dot below the board to clear it.
Strategy & tips
- Start with the corners and edges — they have the fewest ways in and out.
- A pair on the same row or column rarely connects in a straight line; you usually need the detour to help fill the grid.
- If a pipe would trap an empty square with only one opening, reroute — every cell must be reachable.
- Full coverage is the real goal: connecting all pairs the short way often leaves gaps and does not solve the level.
- Use Undo freely to test a route without losing your other pipes.
FAQ
How do you win at Flow?
Connect every pair of same-coloured dots with a pipe AND fill all squares. Connecting the pairs alone is not enough — the whole grid must be covered.
Can pipes cross each other?
No. Each square holds at most one pipe. If you drag into another colour’s pipe it stops; drag back over your own to shorten it.
How many levels are there?
There are 26 hand-made levels that get bigger and trickier — nine 5×5, nine 6×6 and eight 7×7 boards. Your furthest level is saved locally.
Does it work on mobile?
Yes. Drag with your finger from dot to dot. The board scales to fit phones, tablets and desktop.