PlaySudoku.us
Easy
Medium
Hard
Expert
Evil
Learn
💡 Did you know?
3
5
8
4
9
1
2
7
6
4
2
4
6
4
1
3
9
7
2
9
5
3
7
8
5
4
2
✓ Completed!
00:00
⏸
8
9
1
2
3
4
7
6
5
4
2
4
1
4
6
3
9
7
3
8
5
2
9
5
7
4
2
1
2
3
4
5
6
7
8
9
✕
↩
Undo
✕
Erase
💡
Hint
💡 Did you know?