Grafite Sudoku
Free printable sudoku
Free printable sudoku, one per page: pick a level, open the puzzle and download the A4 PDF. The answers are always on page 2, so you can hand the sheet to someone else without spoiling it.
Every puzzle has exactly one solution, checked by the program that generated it: you solve them with logic, no guessing. Each page also shows the grid on screen, the rules and a hint on where to start.
Besides classic sudoku there are two variants: X-Sudoku, with the diagonals, and jigsaw sudoku, with irregular regions. If you prefer big digits, the large print puzzles are easy to read.
No sign-up, no ads. The site is made by the developer of Grafite Sudoku, the Android app: if one day you want to play on your phone too, you will find it on Google Play.
Pick a type of sudoku
Easy printable sudoku
These easy sudoku puzzles need no advanced techniques. At every step there is a cell where only one number fits, or a number with only one free spot in a row, column or box. Those are "singles", and they are all you need.
- Easy Sudoku #1easy · 39 clues
- Easy Sudoku #2easy · 36 clues
- Easy Sudoku #3easy · 36 clues
- Easy Sudoku #4easy · 36 clues
Medium printable sudoku
In medium sudoku, singles are no longer enough: at some point the grid seems stuck and you need one more idea. Usually it is a hidden pair or a locked candidate, techniques you can learn in minutes and that change how you read a puzzle.
- Medium Sudoku #1medium · 29 clues
- Medium Sudoku #2medium · 30 clues
- Medium Sudoku #3medium · 29 clues
- Medium Sudoku #4medium · 30 clues
Hard printable sudoku
Sudoku with few starting numbers that you cannot finish with singles alone. You need patience, pencil marks and some technique: pairs, locked candidates and, in the toughest spots, patterns like the X-Wing.
- Hard Sudoku #1hard · 24 clues
- Hard Sudoku #2hard · 28 clues
- Hard Sudoku #3hard · 27 clues
- Hard Sudoku #4hard · 27 clues
Large print sudoku to print
A grid that fills almost the whole page, big digits and roomy cells to write in. These puzzles are made for anyone who prefers reading without straining their eyes, and for people who like a thicker pen.
- Large Print Sudoku #1easy · 37 clues
- Large Print Sudoku #2easy · 38 clues
- Large Print Sudoku #3easy · 37 clues
- Large Print Sudoku #4easy · 37 clues
Printable X-Sudoku (diagonal sudoku)
X-Sudoku, also called diagonal sudoku, has the classic rules plus one: both long diagonals of the grid must also contain every number from 1 to 9, with no repeats. The diagonals are shaded, so you can see them at a glance.
- X-Sudoku #1easy · 32 clues
- X-Sudoku #2easy · 32 clues
- X-Sudoku #3medium · 30 clues
- X-Sudoku #4medium · 29 clues
Printable jigsaw sudoku
In jigsaw sudoku (also called irregular sudoku) there are no 3×3 boxes: the grid is split into nine free-form regions of nine cells each. Rows and columns work as usual, and each region must contain the numbers 1 to 9.
- Jigsaw Sudoku #1easy · 32 clues
- Jigsaw Sudoku #2easy · 32 clues
- Jigsaw Sudoku #3medium · 28 clues
- Jigsaw Sudoku #4medium · 28 clues
Generator: an A4 sheet with several puzzles
Want several puzzles on one page? The printable sudoku generator builds an A4 sheet with several puzzles, the rules and the answers (the page opens in Italian; pick English from its language menu).
Stuck?
The guides explain the techniques you need for medium and hard puzzles, with a drawn example.
FAQ
- Are these printable sudoku puzzles free?
- Yes: every puzzle and every PDF is free, with no sign-up.
- Where are the answers?
- On page 2 of every PDF and, on screen, below the grid, hidden until you open them.
- What paper size should I use?
- The PDF is A4. It also works on US Letter: print without resizing.