Use when two cells in a unit share the same two candidates.
Pure Sudoku
CLEAN. SMART. ADDICTIVE.
Technique and Help
Intermediate Sudoku techniques turn notes into progress.
Pure Sudoku bridges beginner guides and individual strategy pages, then move motivated players into practice.
- Level
- Intermediate
- Focus
- Notes and patterns
- Habit
- Daily app practice
Use box-line interactions to remove candidates.
Use row and column candidate patterns on tougher boards.
Find the next move
Use the guide to restart the board without guessing.
- Check rows, columns, and boxes before changing many notes.
- Look for one reliable pattern, then practice it on a live board.
- Use the app for steady daily practice when the technique starts to click.
Practice cleanly
The goal is not just to read the answer. The goal is to make the next board easier.
- Start with a medium board when basic rules feel comfortable.
- Move to hard boards once notes and pairs are familiar.
- Review mistakes before starting a new puzzle.
Next routes
Choose the best next step.
FAQ
Quick answers before the next puzzle.
What is an intermediate Sudoku technique?
Intermediate techniques use candidate notes and patterns to eliminate possibilities beyond simple singles.
How should I practice?
Play medium and hard Pure Sudoku boards and pause when notes reveal a pair, line interaction, or X-wing pattern.
Play more
Keep Pure Sudoku one tap away.
Use the web board when you want the fastest first game. Use the iPhone app when Pure Sudoku becomes part of your daily routine.