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