Hard sudoku — printable sheet 7
Four hard puzzles, one page. Answer key: view answers.
1
2
7
8
5
6
9
7
9
5
1
3
4
5
8
1
2
7
8
9
8
1
7
6
5
1
7
6
4
6
3
5
8
9
5
2
3
7
7
5
4
3
3
7
6
1
7
6
5
2
5
1
1
7
6
8
6
9
2
9
8
4
9
2
7
4
1
1
6
8
5
8
3
4
1
6
3
7
5
8
9
3
6
6
5
2
1
5
3
9
8
5
8
1
4
4
7
5
6
8
5
1
9
6
4
7
Sheet 7 of 20 · all hard sheets