Printable Sudoku Puzzles

Generate fresh sudoku puzzles at the difficulty you want and print them 1, 2, 4 or 6 to a page. Every puzzle is checked to have exactly one solution, and the solutions are printed at the end.

Puzzles
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NameDateSudoku (Medium)#163932717836713192676548948376371#214379627364118767168526962875192#337194791355342862819863475964312#496786719558636846981327896915347puzzlemakerkit.com
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Every puzzle has exactly one solution. Solutions are at the end of the PDF.

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How to use it

  1. Choose the difficulty and how many puzzles.
  2. Choose how many per page.
  3. Download the PDF; click New puzzles anytime for a different set.

Difficulty levels

LevelGiven numbersGood for
Easy≈ 40Beginners
Medium≈ 32Regular players
Hard≈ 28Experienced players
Expert≈ 25A real challenge

Good to know

  • Rules: fill each row, column and 3 × 3 box with the digits 1–9, with no repeats.
  • Start with rows, columns or boxes that are nearly full.
  • Difficulty here is set by how many numbers are given: about 40 for easy, 32 medium, 28 hard and 25 expert. Fewer clues usually means harder logic.

Questions

How many clues does a sudoku need?

At least 17 for a puzzle with a single solution, which was proven by computer search in 2012. Most printed puzzles have 25–40.

Does every puzzle have one solution?

Yes. Each puzzle is checked by a solver, and numbers are only removed while the solution stays unique.