Stuck? Tap Hint to see where to look and how to move forward.
Select a cage to see the possible number combinations. Cross out combinations that don't work. Use the calculator to add and subtract cage totals.
- 6 difficulty levels, from Very Easy to Master
- A fresh puzzle every day in the Daily Challenge
- Separate keypads for numbers and notes, plus automatic notes
- Undo, redo, autosave and resume for each difficulty level
- 6 themes, including dark mode
- No limit on mistakes
Killer Sudoku Bird explains each step. Get helpful hints when you're stuck.