Most Sudoku technique guides explain patterns with static screenshots. Pure Sudoku Docs makes them **interactive**: each technique includes step-by-step live demos that reveal hints gradually, so learners can try to spot the pattern before seeing the explanation.
You can **shuffle** equivalent grids to see how the same idea changes visually, or load new puzzles for more examples. Each technique has thousands of practice puzzles.
• Dual keypad design: answer pad and candidate pad are available on screen at the same time.
• Cross-hatching visual hints to help beginners get started faster.
• Non-intrusive ads: no automatic pop-ups, only banner ads and user-triggered rewarded ads.
Interactive Sudoku Technique DocsSudoku techniques with interactive live demo with shufflingJun 2026
