How to Play Sudoku

Master the art of Sudoku with our comprehensive guide. Whether you're a beginner or looking to improve your skills, this guide will help you understand and enjoy the game.

Basic Rules

The Grid

A Sudoku puzzle consists of a 9×9 grid, divided into nine 3×3 boxes. Some cells come pre-filled with numbers.

The Objective

Fill in the empty cells with numbers from 1 to 9, ensuring each number appears exactly once in each:

  • Row
  • Column
  • 3×3 box
Sudoku Grid Example

Getting Started

Step 1: Scan the Grid

Start by looking for cells where only one number can fit based on the pre-filled numbers in the same row, column, or box.

Step 2: Use Elimination

For each empty cell, list all possible numbers that could go there. Eliminate numbers that already appear in the same row, column, or box.

Step 3: Look for Patterns

Search for patterns like pairs or triplets of numbers that must go in specific cells, helping eliminate possibilities in other cells.

Tips and Tricks

Beginner Tips

  • Start with the most filled rows, columns, or boxes
  • Use pencil marks to note possible numbers
  • Double-check your work regularly

Common Mistakes to Avoid

  • Don't guess numbers randomly
  • Don't forget to check all three constraints
  • Don't rush - take your time

Start Practicing