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