🎮 HOW TO PLAY SUDOKU

📌 Objective: Fill every row, column, and 3x3 box with numbers 1–9 without repetition.

🎯 Basic Rules

• ✓ Each row must contain digits 1–9 exactly once
• ✓ Each column must contain digits 1–9 exactly once
• ✓ Each 3x3 box must contain digits 1–9 exactly once
• ✓ Yellow numbers are fixed clues (cannot be changed)
• ✓ White/empty cells are for you to fill

🖱️ Controls

• 📱 Tap a cell to select it (highlighted in gold)
• 🔢 Tap numbers 1-9 to place them in the selected cell
• 🗑️ ERASE removes a number from selected cell
• ↩️ UNDO/REDO to fix mistakes
• 💡 HINT shows the correct number for an empty/wrong cell

⭐ Difficulty Levels

• 🌿 EASY: 41 clues - Great for beginners
• ⭐ MEDIUM: 37 clues - Balanced challenge
• 🔥 HARD: 31 clues - Requires logic
• 🧠 EXPERT: 27 clues - Tough deduction
• 👑 MASTER: 23 clues - Extreme puzzle!

💡 Pro Tips

• Start with rows/columns that have the most numbers already filled
• Use "pencil marks" mentally: note possible numbers for each cell
• Look for "hidden singles" - numbers that can only go in one spot
• Check each 3x3 box individually

GOT IT! LET'S PLAY 🎯