Pure Sudoku Ad-free
CHE KAI CHANG
About this game
- Category Puzzle
- Age 10
- Updated Sep 28, 2025
- OS IOS
Editor reviews
Pure Sudoku Ad-free is a clean, distraction-free Sudoku puzzle game focused on pure logic and smooth play. Solve classic 9x9 grids across multiple difficulty levels with zero ads and no paywalls. Use pencil marks, candidate highlighting, and optional error checking to learn and improve, or test yourself with a minimal, no-assist setup. Play offline with auto-save, track your solve times and completion history, and customize themes including a comfortable dark mode. Fast, precise controls make it perfect for both quick breaks and longer sessions on phone or tablet.
Screenshots
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How to play:
Choose a difficulty and start a new 9x9 puzzle.
Tap a cell and enter a number from 1 to 9 following Sudoku rules.
Use notes mode to pencil in candidate numbers and refine them as you deduce.
Scan rows, columns, and 3x3 boxes to find singles and resolve conflicts.
Toggle optional helpers like highlight duplicates or error check to get guidance.
Finish the grid so each row, column, and box uses digits 1 to 9 exactly once.