Printable sudoku
Pick a level, make new grids as often as you like and print them. Every sudoku here has exactly one solution.
Preview of the printable sheet: Sudoku
In the print window, set the paper to A4 or Letter and the scale to 100%.
- A4 or Letter paper
- Pencil and eraser
How do I print a sudoku with the answer key?
On this page you pick a level, make new grids with every tap and print them. There are four levels: mini, with six 4×4 grids per sheet, and easy, medium and hard, with two 9×9 grids. Every sudoku has exactly one solution. Check the answer option to print the solved grids on a second sheet.
How to use it
- Pick a level: mini, easy, medium or hard.
- Tap Make another sudoku to change the grids on the sheet.
- Tick the answer option if you want the solved grids printed on a second sheet.
- Tap Print the sheet. In the print window, keep the scale at 100% (or choose Fit to page on Letter paper).
How to solve a sudoku
- In the 9×9 grid, every row, every column and every 3×3 box gets the numbers 1 to 9, with no repeats.
- In the 4×4 mini grid, every row, every column and every 2×2 box gets the numbers 1 to 4, with no repeats.
- Start with the rows, columns and boxes that already have the most numbers. See which numbers are missing there.
- Only write a number when it is the only one that fits in that cell. There is no need to guess.
- Use a pencil: write the numbers that can still go in a cell small, in its corner, and erase them as you go.
Which level to choose
- Mini: six 4×4 grids per sheet, for those who are learning the rule.
- Easy: two 9×9 grids with 40 numbers already written in each.
- Medium: two 9×9 grids with about 33 numbers already written.
- Hard: two 9×9 grids with about 27 numbers already written.
Frequently asked questions
Does every sudoku on this page have a single solution?
Yes. Each grid is checked by a program that counts the solutions, and only a grid with exactly one goes on the sheet.
What is the rule of sudoku?
Fill in the empty cells so that every row, every column and every 3×3 box has the numbers 1 to 9, with no repeats.
Do you need math to solve it?
No. Sudoku is a logic puzzle: the numbers work as symbols and are never added or multiplied.
What is the mini sudoku?
It is a smaller 4 by 4 grid, with the numbers 1 to 4 and 2 by 2 boxes. The rule is the same as in regular sudoku.
How many grids are on each sheet?
Two 9×9 grids of the same level, or six 4×4 grids on the mini level.
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