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Hard sudoku — printable sheet 6

Four hard puzzles, one page. Answer key for this sheet.back to the puzzles.

Answers 21 · Hard
9
7
1
4
8
6
5
2
3
6
4
5
3
2
7
8
9
1
2
3
8
1
9
5
4
7
6
8
5
3
2
7
1
9
6
4
7
2
4
5
6
9
1
3
8
1
6
9
8
4
3
7
5
2
3
1
2
9
5
4
6
8
7
4
9
6
7
3
8
2
1
5
5
8
7
6
1
2
3
4
9
Answers 22 · Hard
4
3
1
7
5
9
2
8
6
8
7
5
4
6
2
9
3
1
6
9
2
3
8
1
5
4
7
7
5
8
9
1
4
3
6
2
2
4
9
6
3
7
8
1
5
1
6
3
5
2
8
4
7
9
5
1
4
2
7
3
6
9
8
3
8
6
1
9
5
7
2
4
9
2
7
8
4
6
1
5
3
Answers 23 · Hard
8
3
9
2
5
6
4
1
7
7
6
1
9
4
3
5
8
2
2
5
4
7
1
8
3
9
6
6
2
8
1
9
5
7
3
4
3
1
7
8
6
4
9
2
5
4
9
5
3
2
7
8
6
1
9
7
6
5
8
2
1
4
3
1
4
3
6
7
9
2
5
8
5
8
2
4
3
1
6
7
9
Answers 24 · Hard
8
9
4
6
5
7
3
1
2
1
6
5
3
9
2
8
7
4
7
2
3
1
4
8
6
9
5
9
7
2
5
8
3
1
4
6
6
4
1
7
2
9
5
3
8
5
3
8
4
1
6
9
2
7
3
5
6
2
7
1
4
8
9
4
8
7
9
3
5
2
6
1
2
1
9
8
6
4
7
5
3

Sheet 6 of 20 · all hard sheets