Fluxo
Connect the colours and fill the grid
Fluxo is a free online logic puzzle in the Numberlink style, where you join pairs of coloured dots with pipes that never cross and fill the whole grid, with a new puzzle every day.
- Duration
- 2–5 min
- Difficulty
- Easy to medium
- Skill
- Spatial planning
- Price
- Free
How to play?
A Numberlink: join each pair of matching numbered dots with a pipe that never crosses another one. The grid is solved when every pair is connected and not a single cell is left empty. Easy to pick up, fiendish on the larger grids.
Drag from a dot to draw a pipe, cell by cell, horizontally or vertically.
Bring it to the dot with the same number: the pair is connected.
Pipes never cross: running through one cuts it.
Pick up a pipe anywhere to change it. You win once every pair is connected and every cell is filled.
Why play?
Instantly playable, with a finger or a mouse.
Trains planning ahead: every pipe has to leave room for the others.
A short, soothing game, perfect for a break.
Tips
Start with the dots against an edge or in a corner: they only have a few possible paths, often just one.
Connect the pairs that sit close together first: their shortest pipe is almost always right, and it frees up room for the others.
Watch out for stranded cells: an empty cell walled in by pipes that can no longer pass through it will never be filled.
When two dots are far apart, their pipe often runs along the edge of the grid and leaves the middle to the other pairs.
A full grid is not enough: filling it without connecting every pair counts as a mistake in your score. Check the row of dots under the board before placing the last cell.
Frequently asked questions
How do you play Fluxo?
Drag from a numbered dot to draw a pipe to the dot with the same number, moving from cell to cell horizontally or vertically. Pipes never cross. The grid is solved once every pair is connected and every cell is filled.
Is Fluxo free to play?
Yes. Fluxo is free in your browser, on desktop or mobile, with nothing to download. You can play today's grid without an account. A free account unlocks the archive of past days, and SIWA+ (18 € a year) removes ads and adds advanced stats.
What is Numberlink?
Numberlink is a Japanese logic puzzle, made popular by the publisher Nikoli: you join pairs of matching numbers with paths that never cross. Fluxo uses those rules and also requires the whole grid to be filled, in a daily format with a score and a leaderboard.
Does every Fluxo puzzle have a unique solution?
Yes. Every grid is generated by an algorithm and checked by a solver before it goes live, so the solution is always unique. You can solve it by pure deduction, with no guessing.
Does Fluxo get harder on certain days?
Yes. On weekdays the grid is 7 × 7 with 6 to 8 pairs. On Sundays it grows to 9 × 9 with 8 to 10 pairs, with longer, more tangled pipes. If you get stuck, the joker draws one whole pipe of the solution, at the cost of a few points.
Play now Fluxo
Connect the colours and fill the grid
On your phone, no app needed: it all plays in the browser.
Play now — for free