Difficulty
: Easy,
Time:
4
6
9
7
3
2
8
3
7
4
1
6
3
7
6
1
2
4
2
5
8
1
3
4
1
4
3
6
7
9
3
1
5
6
5
1
4
3
6
2
7
8
9
1
8
9
2
7
4
5
(c) 2019
123sudoku.co.uk