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