Medium Sudoku Puzzles

Check out a set of free printable medium Sudoku puzzles to test your brain. Great for Sudoku fans, these puzzles are a fun and exciting way to boost focus, attention, and problem-solving skills. Download, print and have fun solving today!

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Basic Rules / How to Play

  • Grid Size: The puzzle has typically 9x9 grid size made up of three 3x3 sub-grids. The other variation can be of 4x4, 6x6, 10x10, 16x16 etc.
  • Rows: Each row must contain all digits from 1 to 9. No digit can be repeated within a single row.
  • Columns: Each column must contain all digits from 1 to 9. No digit can be repeated within a single column.
  • Box: Each 3×3 box must contain all digits from 1 to 9. No digit can be repeated within any of the nine 3×3 subgrids.
  • Pre-Filled Numbers: The numbers given at the start of the puzzle must remain unchanged.

Need Help?

To get started, check out these instructions, goals and rules for how to solve Sudoku

How to Download & Print

Click the puzzle thumbnail to open the printable PDF. In the print dialog, ensure "Actual Size" is selected for the sharpest grid lines.