🔢 Sudoku Classic

Sudoku Classic is the world-famous number puzzle that challenges your logic and patience. Place numbers from 1 to 9 in each row, column, and 3×3 box without repeating.

🎯 Objective

Fill the grid so that every row, column, and 3×3 box contains all digits from 1 to 9 exactly once.

📜 Rules & Gameplay

• The Grid: A 9×9 board divided into nine 3×3 boxes.
• Numbers: Digits 1–9 must appear once in each row, column, and box.
• Clues: Some cells already contain numbers to guide you.
• Input: Click a cell and choose the correct number.

🧠 Strategy Tips

• Start with rows or columns that have the most numbers filled in.
• Look for “single candidates” where only one number can fit.
• Use pencil marks to keep track of possibilities.

💡 Why Play Sudoku Classic?

A timeless logic puzzle that sharpens focus and problem-solving skills. Perfect for daily brain training and relaxing breaks alike.