Sign-Up
Play Sudoku
Daily challenge
Sudoku Tips & Tricks
Sudoku Printables
Sudoku Editor
Log-In
MENU
Close
Sign-Up
Log-In
Play Sudoku
Sudoku Tips & Tricks
Daily challenge
Sudoku Printables
Sudoku Editor
My Profile
Log-Out
Hard Sudoku #3165937412820
00:00
3
1
2
6
4
3
4
7
5
1
9
2
6
3
8
5
7
7
1
4
2
1
5
7
7
8
6
4
2
8
1
2
3
4
5
6
7
8
9
Erase
Undo
Notes
Hint
?
Solution
Share
Erase