Classic Sudoku - Brain Puzzle

Relaxing offline Sudoku with hints, note-taking, undo & smart logic tools.

🧩 Master the world's most beloved number puzzle with Classic Sudoku - Brain Puzzle! Train your mind daily with beautifully crafted grids and intelligent features designed for puzzle lovers of all skill levels.
🎯 Perfect Sudoku Experience
Enjoy premium puzzle-solving with our clean, distraction-free interface. Whether you're learning Sudoku basics or tackling expert challenges, every grid delivers pure satisfaction and mental stimulation that keeps you coming back for more.
⭐ Key Features That Set Us Apart
🎲 4 Difficulty Levels for Every Player

Easy - Perfect for beginners learning Sudoku rules and basic strategies
Medium - Build confidence with moderate challenges and pattern recognition
Hard - Test advanced logical reasoning skills and complex deduction
Expert - Ultimate brain training for Sudoku masters seeking perfection

🎨 Premium Design & Usability Experience

Clean, modern interface with smooth animations and transitions
Responsive touch controls optimized specifically for mobile devices
Portrait & landscape modes adapting perfectly to any screen size
Eye-friendly color schemes reducing strain during extended gaming sessions
Intuitive navigation making every interaction feel natural and effortless

📱 Play Anywhere, Anytime - Complete Freedom

100% offline gameplay - absolutely no internet connection required
Auto-save progress across all active puzzles automatically
Perfectly optimized for both smartphones and tablets
Instant resume functionality - continue exactly where you left off
Battery-efficient performance ensuring hours of uninterrupted gameplay

🔧 Smart Puzzle Tools & Learning Features

Intelligent hint system that guides your learning without giving away solutions
Real-time auto-check catches mistakes immediately for faster improvement
Advanced pencil notes system for tracking multiple possible number candidates
Smart duplicate highlighting prevents common errors across rows, columns, boxes
Unlimited undo functionality - experiment freely without any penalties or restrictions

📊 Comprehensive Progress Tracking & Analytics

Detailed statistics breakdown for each individual difficulty level
Personal best completion times and accuracy rates tracking
Advanced performance analytics clearly showing your improvement trends over time
Comprehensive achievement system celebrating every mil