Classic Sudoku

How to Play Classic Sudoku

Sudoku is a logic-based number placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids (also called boxes or regions) contain all of the digits from 1 to 9 without repetition.

Rules:

• Each row must contain the digits 1-9 without repetition.
• Each column must contain the digits 1-9 without repetition.
• Each of the nine 3×3 sub-boxes must contain the digits 1-9 without repetition.

Tips for Solving Sudoku Puzzles:

1. Scanning: Look for opportunities to fill in cells by checking rows, columns, and boxes for missing numbers.
2. Elimination: Identify what numbers can go in each empty cell by eliminating impossible numbers.
3. Singles: Find cells where only one number can possibly go.
4. Hidden Singles: Look for numbers that can only go in one specific cell within a row, column, or box.
5. Advanced Techniques: For harder puzzles, techniques like pairs, triples, X-Wing, and Swordfish can be used.

Challenge yourself with different difficulty levels and improve your logic skills with our Classic Sudoku game!