Sudoku guide
Expert Sudoku online
Expert Sudoku is built for patient solvers who enjoy advanced candidate logic and longer solves.
Play expert Sudoku
No install, no timer pressure
5
3
6
1
5
9
8
6
8
3
7
6
6
2
8
4
9
5
7
9
How expert puzzles feel
Expert boards give fewer easy openings. You may need several passes before a single move becomes clear.
Tips before starting
Keep notes tidy, pause before every uncertain move, and use elimination patterns instead of trial and error.
Practice