Large Print Sudoku
Most printable sudoku squeezes a 9×9 grid into a quarter of the page and sets the numbers in whatever font came to hand. These fill the sheet, in numerals large enough to read without leaning in — the same approach as the word searches, applied to a grid of digits.
Three puzzles below, one of each difficulty. Free to print and photocopy, and every PDF carries its answer key as page two.
Puzzle 1 — Easy
Peek at the answer key
Puzzle 2 — Medium
Peek at the answer key
Puzzle 3 — Hard
Peek at the answer key
What makes these large print
A standard 9×9 grid on a full US Letter page gives each cell more than three-quarters of an inch of space, so the numerals print in about 34-point type, around a third of an inch tall. That is roughly double the 16- to 18-point type of a large-print book. The givens sit on a lightly shaded square so it is obvious at a glance which numbers are fixed and which are yours to fill in — useful when the puzzle gets picked up and put down over a few days.
The typeface is Atkinson Hyperlegible, designed by the Braille Institute for low-vision readers. It matters more for sudoku than for word searches, because its numerals are drawn to be told apart: the zero is slashed, the one has a foot, and 6, 8 and 9 do not collapse into each other at a glance.
How the difficulties differ
Difficulty here is set by how many numbers you start with. The easy puzzles give you around 45 of the 81 cells, the medium ones about 35, and the hard ones about 27 — and every puzzle, at every level, has exactly one correct solution. That is checked by solver before the puzzle is ever rendered, so you will never hit a grid with two valid answers or none at all.
If the 9×9 grids are a strain rather than a challenge, the easy large print sudoku page has 6×6 grids, which print half again as large.
Once standard sudoku feels routine, killer sudoku keeps the same rules and adds sums: each outlined cage of cells must add up to its little total. Our sister site Logic Puzzle Lab has killer sudoku to play online or print, from easy to expert.
Frequently asked questions
Are these sudoku puzzles really free?
Yes — free to print, download and photocopy, with no sign-up and no watermark. Care homes, libraries, senior centers and activity groups can use them in any quantity.
How large do the numbers print?
On a full US Letter sheet a 9×9 grid prints its numerals in about 34-point type, around a third of an inch tall — roughly double a large-print book. The 6×6 grids on the easy page print larger again, close to half an inch.
Does every puzzle have exactly one solution?
Yes. Each grid is verified by a solver during generation, and any puzzle with more than one valid solution is rejected and regenerated. The answer key is page two of every PDF.
Do you have large print word searches too?
Plenty — over a hundred pages of them, by theme, season, month and difficulty. Sudoku is the newest addition to the site.