All Sudoku - 5 kinds of sudoku

Overview
Immerse yourself in All Sudoku, the comprehensive suite offering 5 unique Sudoku variations filled with endless puzzles and challenges to enrich your problem-solving experiences.

Key Features
1. Quartet of Sudoku Variants: Delve into Classic Sudoku, Compare Sudoku, Killer Sudoku, Calculation Sudoku, and Symbol Sudoku.
2. Daily Sudoku Challenge: Test your skills against Sudoku lovers globally with daily shared puzzles.
3. Infinite Puzzle Supply: Enjoy a bottomless vault of puzzles to last a lifetime.
4. Difficulty Selection: Choose from five different levels tailored to your skills.
5. Autosave Progress: Pick up exactly where you left off thanks to auto-saving features.
6. Candidate Number Memo: Easily track your potential solutions with a handy memo function.
7. Unlimited Undo/Redo: Freedom to experiment with solutions and strategies without restraint.
8. Bookmarking Galore: Mark and return to your place with an unlimited number of bookmarks.
9. Multimedia Language Support: Play in English, Korean, Japanese, or two versions of Chinese.
10. Helpful Hints: A helping hand when puzzles have you stumped.
11. Duplicate Indicators: Quickly spot repeating numbers with color-highlighted alerts.
12. Retina Display Optimized: Crystal-clear game experience on all devices.
13. Smart Interaction: Double-tap mechanic to switch between input and memo modes.
14. Comparative Coloring: Color cues indicate which numbers demand your attention.
15. Customizable Settings and Feedback Loop: Adjust game settings and directly reach out to developers with suggestions or concerns.

Interesting Gameplay
1. Lay out numbers carefully, filling grids without repetition in rows, columns, or blocks.
2. Attack daily puzzles, joining an ongoing worldwide ranking of Sudoku enthusiasts.
3. Apply deduction and mathematics particularly in the Killer and Calculation variants.
4. Employ smart use of memorandums for complex configurations while managing numerous possibilities.
5. Navigate puzzles with custom engagement, ensuring a personalized and accessible Sudoku adventure.