About Sections
Sections is a free daily logic puzzle. Bars split the grid into runs of cells called sections, and you fill each one with the numbers 1 up to its length, using each number once. A three-cell section takes 1, 2 and 3. A six-cell section takes 1 through 6.
The twist is that every square belongs to two sections at once, one horizontal and one vertical, so whatever you write has to work for both. The shortest section a cell sits in caps the biggest number that can go there, and most of the solving falls out of that one rule.
If you know Sudoku, the difference is that the shape changes. Sudoku gives you the same nine rows, columns and boxes forever. Here the bars move, so every grid has its own geometry to read before you can get going.
Where to Start
Short sections are the way in. A two-cell section can only hold 1 and 2, so anywhere a short run crosses a long one you have very few options and usually a forced cell within a move or two.
New to it? The how to play guide covers the rules, the tutorial walks you through a grid one move at a time, and tips gets into the techniques that make the bigger sizes manageable.
How the Puzzles Are Made
Every puzzle is generated and checked by our own software before it goes up, and the checking is the part that matters. Two things have to be true before anything gets published: it has to have exactly one solution, and that solution has to be reachable by pure deduction.
Anything that would need you to guess a value and backtrack when the guess turns out wrong gets thrown away. So if you are stuck, there is a logical next step in there somewhere. You are never meant to guess.
A New Puzzle Every Day
There has been a new puzzle every day since January 1, 2025. Grids run from 5×5 to 9×9, and the size moves around from day to day rather than climbing steadily through the week. Solving the daily builds a streak, and missing a day breaks it.
If you would rather work on paper, the printable sheets will generate puzzles at whatever sizes you want, with or without the solutions.
Who Makes It
Sections is an independent project, built by a small team who wanted a clean, fast daily logic game without the clutter. It is free, it works on phones and desktops, and you do not need an account. Signing up is optional and does one thing: it syncs your progress and your streak across devices, so a puzzle you started on the train is waiting on your laptop.
Get in Touch
Bug reports, corrections and suggestions all reach a real person. Use the contact page or email contact@sectionspuzzle.com. If you think a published puzzle is wrong, send us the date and we will run it back through the solver.