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