Expert Sudoku online
An advanced challenge that asks you to manage candidates carefully and spot less obvious patterns.
Play Expert SudokuWho is Expert Sudoku for?
This level is best suited to confident solvers seeking a serious logic workout. The puzzle runs directly in your browser, so there is nothing to download.
Helpful features
- Candidate notes for uncertain squares
- Hints with a short logic explanation
- Undo, erase, pause and resume controls
- Optional account progress, points and friend challenges
A useful solving approach
Begin by scanning for missing digits in the most complete rows, columns and boxes. Recheck the grid after every confirmed number because one placement often creates the next opportunity.