Printable Killer Sudoku puzzles, ready for pencil.
Each pack is a black-and-white A4 booklet of Killer Sudoku grids, with the answer key starting on its own page. Box lines are heavy, cage borders are dashed and set inside the cells, and each sum sits in the top-left corner of its cage.
- 6 free packs
- 4×4 · 6×6 · 9×9
- Answer key included
- No sign-up
- A4
- A4
- A4
- A4
- A4
Build your own pack
Mix sizes and difficulties in one PDF: say a few easy 4×4 warm-ups for a class, then some hard 9×9 grids. Up to 100 puzzles, answers included.
- Up to 6 sections
- A4 or US Letter
- Made in your browser
Sections
1 / 6Each section adds puzzles of one size and difficulty, in order.
8 pages: 4 of puzzles, 4 of answers
Your page preview lands here
Press Generate to build 8 puzzles in your browser. Nothing is uploaded, and you can page through every puzzle and answer page here before you download.
How does the pack builder work?
Everything happens on your device. When you press Generate, your browser creates each Killer Sudoku grid from the pack seed, solves it to make the answer key, and lays the pages out as a PDF. Nothing is uploaded and there’s no account. Four 4×4 or 6×6 grids share a sheet, and two 9×9 grids share a sheet. Tick Large print if you want one big grid per page. 4×4 comes in easy, 6×6 in easy and medium, and 9×9 in medium and hard. Each puzzle prints with its number and seed, so answers line up even when you keep them in a separate PDF. The same seed and settings always give the same puzzles. Use Copy share link to send a class or a friend the exact same pack, or press shuffle for a fresh set.
Want Killer Sudoku next to Sudoku in one PDF? Build a mixed pack.
Just want one grid?
Open Killer Sudoku, choose a size and difficulty, then press Print. You get a single clean sheet of that puzzle.
- 1
Download
Pick a size and difficulty. Every file is a small A4 PDF.
- 2
Print in black & white
4×4 fits four to a page, 6×6 fits four to a page, 9×9 fits two to a page.
- 3
Check the answers
The answer key starts on its own page, so you won’t spoil the next puzzle.
About these Killer Sudoku packs
Print a Killer Sudoku pack and solve it with a pencil. Killer Sudoku, also called Sum Sudoku, is a sudoku whose clues are sums instead of given digits. Every row, column and heavy-bordered box holds each digit once, and the digits inside each dashed cage are all different and add up to the sum in its corner. Each file is a black and white booklet: the puzzles come first with no digits filled in, and the answer key starts on its own page with every cell filled and the cages still drawn. Packs are split by size and difficulty: 4×4 at easy, 6×6 at easy and medium, and 9×9 at medium and hard. A 4×4 or 6×6 sheet holds four puzzles, and a 9×9 sheet holds two. Seeds are fixed, so the same download always has the same grids. Each single pack has eight puzzles, and the starter pack has one puzzle from each of the five packs. To try one grid on screen first, open Killer Sudoku and use Print or Download PDF there.