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