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