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Sudoku

Medium⭐ Popular

Printable sudoku puzzles in easy, medium, and hard difficulty. Multiple puzzles per sheet to keep you busy.

👥
Players
1
⏱️
Duration
10–45 min
🎂
Age
10+
🎯
Objective

Fill every cell so each row, column, and 3×3 box contains the digits 1–9 exactly once.

How to Play

1The Grid

  1. The puzzle is a 9×9 grid divided into nine 3×3 boxes.
  2. Some cells are pre-filled with digits as clues.
  3. You must fill in all empty cells.

2The Three Rules

  1. Every row must contain the digits 1–9 with no repeats.
  2. Every column must contain the digits 1–9 with no repeats.
  3. Every 3×3 box must contain the digits 1–9 with no repeats.

3Strategy Tips

  1. Start with rows, columns, or boxes that already have the most clues.
  2. Use pencil marks to note possible digits in empty cells.
  3. Look for a digit that can only fit in one cell within a row, column, or box — place it there.
  4. Eliminate candidates by cross-referencing rows and columns.

4Finishing

  1. The puzzle is solved when every cell is filled and all three rules are satisfied.
  2. There is always exactly one valid solution.
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