All Sudoku - 5 kinds of sudoku

Challenge players worldwide daily in exciting sudoku competitions.

Gameplay Features

• Five Unique Sudoku Variants:
• Classic Sudoku
• Comparison Sudoku
• Killer Sudoku
• Calculation Sudoku
• Symbol Sudoku
• Daily Global Challenge: Solve the same puzzles as players around the world every day
• Unlimited Puzzles: Endless supply of sudoku challenges for lifelong enjoyment
• Customizable Difficulty: Select from 5 different challenge levels
• Cloud Auto-Save: Game progress automatically saves across devices

Smart Playing Tools

• Candidate Notes: Mark possible numbers in empty cells
• Unlimited Undo/Redo: Correct mistakes with unlimited steps back
• Smart Bookmarks: Save and return to any position in your game
• Visual Assist: Duplicate numbers highlighted for easy spotting
• Comparison Highlights: Color-coded cells for comparison puzzles
• Hint System: Get help on difficult cells when needed

Technical Features

• Optimized for Retina displays
• Double-tap memo mode toggle
• Multilingual support (English, Korean, Japanese, Simplified & Traditional Chinese)
• Customizable settings (sound, language preferences)
• Direct developer feedback system