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Sudoku 9×9

Number Puzzle

Hard
Grid Size

9×9

Filled Cells

29/81

Audience

Seniors

About this difficulty: For experienced players. Fewer clues require advanced techniques.

Download & Print PDF

Answer key shows the complete solution on a second page

PDF includes: Puzzle grid (page 1), Answer key (page 2)

Puzzle Preview

5
4
1
3
1
6
8
3
7
8
2
9
4
5
9
8
4
6
7
3
9
8
9
3
1
5
4
1
7

How to Play

The Rules:

  • • Fill in the missing numbers from 1 to 9
  • • Each row must contain the numbers 1-9 without repeating
  • • Each column must contain the numbers 1-9 without repeating
  • • Each 3×3 box must contain the numbers 1-9 without repeating

Tips for solving

  • • Start with rows, columns, or boxes that have the most numbers filled
  • • Look for cells where only one number is possible
  • • Use the process of elimination to narrow down possibilities
  • • In online mode, hints are available if you get stuck

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