Hard sudoku — printable sheet 11
Four hard puzzles, one page. Answer key: view answers.
9
1
3
4
3
6
8
9
1
9
5
1
8
6
9
2
4
5
6
4
5
8
3
2
7
1
6
3
9
6
8
3
2
4
1
7
3
9
2
6
4
8
9
2
7
1
6
8
7
5
9
2
7
1
7
9
6
9
1
3
4
7
2
9
1
8
2
4
6
9
1
3
6
7
8
6
2
4
3
4
5
9
2
6
1
3
6
6
3
2
8
5
6
1
7
9
2
5
8
7
5
3
4
1
6
5
8
4
Sheet 11 of 20 · all hard sheets