Blank sudoku grid
An empty grid with the nine boxes marked, sized for A4. Pick how many go on a page, then print — no download, no sign-up, nothing to install.
What an empty grid is actually for
Three things, and none of them involve solving:
- Copying a puzzle out of a book, a newspaper or a phone, so you can work it on paper without folding the page in half.
- Designing one of your own — most people build a puzzle by starting from a full grid and removing entries, and that needs a blank grid to draw on.
- Keeping notes. Some solvers like a separate sheet for candidates, especially on the hard settings where a single grid fills up fast.
Printing it
Press Ctrl+P — or Cmd+P on a Mac — and three settings matter:
| Setting | What to choose | Why |
|---|---|---|
| Scale | 100% | Anything smaller shrinks the cells below comfortable writing size |
| Headers and footers | Off | Otherwise the browser prints the URL and the date across the grid |
| Margins | Default | The sheet is already sized for the printable area of A4 |
On a phone the browser's print dialog hides behind the share menu: Share, then Print. The same page comes out.
Copying a puzzle down accurately
Count the rows down the left edge and the columns across the top. That sounds pedantic until you need to look something up: every explanation on this site addresses cells as R4C7 — row 4, column 7 — and without numbers on the paper you have to count from the corner every time, mid-solve. Ten seconds of numbering at the start saves that.
If the puzzle you are copying has a given in a cell, write it in pen or in a heavier stroke than your own entries. Mixing the two is the single most common way to lose a board halfway through: you stop being able to tell what was given from what you filled in.
Drawing your own
The reliable order is backwards from how it feels: start with a finished grid, then take entries away. A puzzle built by placing digits into an empty grid usually ends up with two solutions, and finding out which two requires solving it twice.
If you want to know how many entries to remove before a puzzle becomes unfair, the data page has the measured numbers, and the technique guide has the order to check them in.
This is not a puzzle generator
The grid is empty on purpose — it carries no puzzle. For sheets with actual puzzles on them, the printable sheets page makes one, two or four per page at five difficulties, and every one is graded rather than guessed. If you want an answer rather than a grid, the solver explains each step instead of just filling the board.