♢ OURSUDOKU

Free Online Sudoku Game

⏱️ 00:00 ❌ Errors: 0 ✏️ Pencil: OFF

📖 What is Sudoku?

Sudoku is a logic-based puzzle game from Japan. The goal is to fill a 9×9 grid with digits 1 through 9, without repeating any number in rows, columns, or 3×3 boxes.

🎯 Golden Rule: Each digit from 1 to 9 must appear exactly once per row, column, and 3×3 box.

📜 The 3 Essential Rules

📏 Rule 1: Rows

Each horizontal row must contain all digits from 1 to 9, with no repetition.

📐 Rule 2: Columns

Each vertical column must contain all digits from 1 to 9, with no repetition.

⬛ Rule 3: 3×3 Boxes

Each 3×3 box must contain all digits from 1 to 9, with no repetition.

🎓 Beginner Tips

💡 Tip 1: Start with obvious cells

Look for rows, columns, or boxes missing only one digit.

💡 Tip 2: Use "Pencil Mode"

Note all possible digits in a cell before deciding.

💡 Tip 3: Single Candidate Technique

If a cell has only one possible digit, that's the correct one!

💡 Tip 4: Check regularly

Click "Check" to see if you've made any mistakes.

⭐ Difficulty Levels

  • 🍃 Easy (41 digits) - Perfect for beginners
  • 🌙 Medium (26 digits) - Requires more thinking
  • 🔥 Hard (16 digits) - For experienced players
  • 👑 Master (9-10 digits) - Extreme challenge!