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