Apollo's Templates
HomeGamesSudoku
Sudoku · free & printable

Printable Sudoku (Free PDF Packs, Generator, Daily and 36 Themed Templates)

Free printable sudoku with a guaranteed single solution and an answer key on every sheet. Ready-made 24-puzzle packs from easy to expert, a generator that prints 1 to 6 per page, a large-format daily edition, large print, kids grids by age, and 36 themed templates around the same technique-graded 9×9.

Pick your sudoku

Sudoku by difficulty and layout

Each page opens on a ready-to-print PDF pack with answers and the generator preset to that intent.

Easy sudoku
Singles only. 24-puzzle pack, large-print pack, generator preset.
Open →
Medium sudoku
One locked-candidate step. 24-puzzle pack, generator preset.
Open →
Hard sudoku
X-Wing, XY-Wing or Swordfish. 24-puzzle pack, two per page.
Open →
Expert & evil sudoku
Chains. 24-puzzle pack; Sadistic in the generator.
Open →
Sudoku 6 per page
Four packs, Easy to Expert, six to a sheet.
Open →
Large print sudoku
One big grid per page. Daily edition and packs.
Open →
Sudoku generator
The full control panel: any tier, 1 to 6 per page.
Open →
How to play sudoku
The one rule, a four-step method, a printable rules sheet.
Open →
What you print

What the sudoku sheets look like on paper

Page one of real PDFs from this site. Click any to open its page.

Six easy nine-by-nine sudoku puzzles arranged two across and three down on one page, each with a small id under the grid

Easy, six per page

24-puzzle pack with answers.
Two hard sudoku puzzles stacked on one page with roomy cells for pencil marks and an id beneath each grid

Hard, two per page

Pencil room for X-Wings.
One easy sudoku puzzle filling a portrait page with large, widely spaced digits and heavy box rules

Large print, one per page

Big digits, one grid a page.
Daily Sudoku medium edition page with a large 9x9 headline, edition number and date, a difficulty tab strip marking Medium and one big grid with moderate givens

The Daily edition

New every morning, five lines.
A six-by-six kids sudoku with roughly half the cells empty and bold digits 1 to 6

Kids 6×6

By age, 4 to 10.
Christmas sudoku sheet on cream with a red and pine plaid border, holly sprigs in the corners and a script title above the 9×9 grid

Christmas template

One of 36 themed frames.
New every day

The Daily Sudoku: one numbered edition a morning

One fresh 9×9 every day in a large-format editorial layout in five lines, Easy to Sadistic. Single-solution verified, the answer key prints small on page 2, and every past edition stays in the archive. New edition at 3:01 AM PT.

“This is one of my favorite games - especially when I’m flying.. Now I get to create my own puzzles, and don’t have to buy them. Enjoy!”— David, Apollo’s Templates

Want to play interactively instead of printing? PuzzleFuel — our sister site — runs the same daily puzzle as a playable web app: notes, timer, autosave, no signup.

Printable sets

36 holiday, themed, vintage and kids sudoku templates

Every template prints with its answer key. Holiday and themed sets carry seasonal art around the same 9×9; the kids sets step down to 4×4 and 6×6 so a child can finish one by scanning alone. Three styles per set.

Holiday & seasonal (18 templates)

Themed & styled (12 templates)

For kids (6 decorated templates + plain grids)

Other formats

Blank grids · PDF
Blank Sudoku Templates
Eight empty grids to print — 9×9 at one, two, four or six per page, plus 6×6, 4×4, 16×16 and a pencil-mark version.
Open →
Spreadsheet · XLSX
Sudoku Excel Templates
The same grids as .xlsx, including one that turns a cell red the moment you repeat a number. No macros.
Open →
Sudoku for 4 year oldsSudoku for 5 year oldsSudoku for 6 year oldsSudoku for 7 year oldsSudoku for 8 year oldsSudoku for 9 year oldsSudoku for 10 year olds
How the tiers work

What easy, medium, hard and expert mean here

Most printable sudoku is graded by counting the givens, which is why a newspaper medium can be a singles walk one day and a hidden hard the next. Every puzzle on this site is graded instead by solving it with human techniques and recording the hardest one that was needed. Easy is naked and hidden singles only. Medium adds exactly one move, the locked candidate. Hard requires an X-Wing, XY-Wing or Swordfish. Expert, the tier other sites call evil, needs a chain, and Sadistic strips givens further.

Because each tier adds one idea, a solver can climb them in order without ever meeting a puzzle that needs something they have not seen; the how to play page lays the ideas out in that order with a printable rules sheet. Every puzzle, at every tier and in every frame, is verified to have exactly one solution before it prints.

Common questions

Printable sudoku questions

Do these sudoku puzzles have exactly one solution?
Yes. Every puzzle is checked by a solution-counting solver before it is drawn, and any grid with more than one solution is discarded. A puzzle with two answers is a broken puzzle; you will not get one here, in a pack, the generator or the daily.
How is the difficulty decided?
By the hardest human technique the puzzle actually requires, not by how many numbers are given. Easy needs only single-candidate logic; medium adds locked candidates; hard forces an X-Wing, XY-Wing or Swordfish; expert requires chained reasoning. That is why a hard here is genuinely hard and a medium is always the same kind of medium.
Which page should I start on?
If you want a stack of puzzles at one difficulty, the easy, medium, hard or expert page: each has a 24-puzzle PDF with answers. If you want six to a sheet for a class, the 6-per-page page. If you want one big grid a day, the Daily. If you are teaching a child, the kids pages by age. If you want to set every option yourself, the generator.
Is there a large-print sudoku?
Yes. The large print page has one-per-page packs with oversized digits, the Daily edition is large format every day, and the generator has a large-print toggle that caps the layout at two per page so the digits never shrink.
Can I print the same puzzle again later?
Each puzzle carries a stable id, a difficulty letter plus a seed like H-734102, printed under the grid. The engine is deterministic, so keep the PDF and the same id always means the same puzzle. Daily editions are archived by date and never regenerated.
Do I need an account or special software?
No. Everything runs in your browser, the PDFs open in any reader, and it is free with no signup, no email and no watermark. Print as many as you like, for a classroom, a care home or a newsletter.
Where are the themed and kids templates?
Below on this page: six holiday sets, birthday, back-to-school, newspaper and vintage frames around the same 9×9, and the kids section with 4×4 and 6×6 grids, decorated designs and a page for every age from four to ten. Blank grids and Excel templates are there too.
More free games:Bingo Cards·Bunco Templates·Jigsaw Puzzles
Updated September 2026