Sudoku Online

The classic number puzzle game. Fill the grid so each row, column, and 3x3 box contains digits 1-9.

How to Play Sudoku

Basic Rules

  • Fill each row with numbers 1-9
  • Fill each column with numbers 1-9
  • Fill each 3x3 box with numbers 1-9
  • No number can repeat in any row, column, or box

Tips for Beginners

  • Start with rows/columns that have many numbers
  • Use process of elimination
  • Look for numbers that can only go in one place
  • Use the hint feature when stuck

Frequently Asked Questions