Blank Sudoku Grid
A blank sudoku grid is an empty template for copying a puzzle from a newspaper, making your own or teaching the rules. Choose 4×4, 6×6, the standard 9×9, 12×12 or 16×16, put 1 to 6 grids on a page, and print or download a PDF in A4 or US Letter. Thick lines mark the boxes.
Blank grid maker
The generator needs JavaScript. The puzzle shown below is a fixed sample you can print with your browser.
How to print it
- Choose the grid size.
- Choose 1, 2, 4 or 6 grids per page and the number of pages.
- Pick A4 or US Letter.
- Press Print or Download PDF.
Grid sizes and boxes
| Grid | Box size | Symbols |
|---|---|---|
| 4×4 | 2×2 | 1–4 |
| 6×6 | 2 rows × 3 columns | 1–6 |
| 9×9 | 3×3 | 1–9 |
| 12×12 | 3 rows × 4 columns | 1–9 and A–C, or 1–12 |
| 16×16 | 4×4 | 1–9 and A–G, or 0–F |
Bigger grids are usually written with letters after 9 so every cell holds one character. Choose 1 grid per page for 12×12 and 16×16, so the cells stay large enough to write in.
Uses for an empty grid
- Copy a puzzle from a newspaper or a book and work on it with more room.
- Start over on a fresh copy when your first try got messy.
- Make a puzzle for a friend: write the givens, then check it has one answer by solving it.
- Teach the rules in class with a 4×4 or 6×6 grid.
Need graph or lined paper? Try Paper Generator, our sister tool for printable paper.
Frequently asked questions
How do I print a blank sudoku grid?
Pick the grid size and how many grids per page, choose A4 or US Letter, and press Print. Download PDF saves the same pages as a file you can print later or copy for a class.
What size is a standard sudoku grid?
The standard sudoku is 9×9, made of nine 3×3 boxes, for 81 cells. The blank 9×9 grid here fills the page width at one per page, with smaller grids at 2, 4 or 6 per page.
How is a 16x16 sudoku written?
A 16×16 sudoku needs 16 different symbols. Most puzzles use 1 to 9 and the letters A to G, or the hexadecimal digits 0 to 9 and A to F. The boxes are 4×4.
Can I make my own sudoku on a blank grid?
Yes, but a good puzzle must have exactly one solution, which is hard to check by hand. If you want ready-made puzzles with one answer, use the generator on the home page instead.
Why are some lines thicker?
The thick lines mark the boxes. Each box must contain every symbol once, just like each row and column, so it helps to see the boxes clearly when you solve.
Last updated: October 15, 2026