Daily Sudoku Challenge for 2018-02-04
Difficulty: ★★★★★ Best Time: 08:27
Previous challenge - not open for competition
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
7
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
8
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
4
1
2
3
4
5
6
7
8
9
6
9
1
2
3
4
5
6
7
8
9
3
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
1
2
3
4
5
6
7
8
9
8
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
2
1
2
3
4
5
6
7
8
9
7
1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
6
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
2
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
9
1
2
3
4
5
6
7
8
9
5
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
6
4
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
3
1
2
3
4
5
6
7
8
9
7
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
5
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
X
Check:
Top 10 Best Times for this Challenge(Final Standing)
It seems you haven't completed the current puzzle yet. Do you really want to quit and get a new random puzzle?