Hard Sudoku Puzzles
Hard 1
Complete: 0%
4
6
8
2
6
9
1
5
7
4
7
9
8
1
1
7
5
3
1
1
2
8
3
2
5
9
Hard 2
Complete: 0%
8
6
4
5
6
9
1
9
2
4
5
3
8
7
8
9
6
9
2
3
4
7
1
6
4
1
7
8
7
3
Hard 3
Complete: 0%
8
7
5
7
1
9
2
1
3
6
8
7
2
5
9
3
1
9
5
3
3
7
9
4
8
2
6
9
7
2
Hard 4
Complete: 0%
4
2
8
6
9
5
8
4
1
7
6
9
5
9
7
6
5
8
5
4
6
6
4
2
5
3
8
2
3
6
1
Hard 5
Complete: 0%
9
5
1
4
3
9
5
8
7
5
5
1
3
8
4
7
6
6
1
8
9
6
1
9
3
8
7
1
5
9
Hard 6
Complete: 0%
3
9
3
4
1
6
1
7
5
2
8
6
5
6
7
8
4
6
5
9
4
1
2
7
5
3
Hard 7
Complete: 0%
7
1
8
3
2
6
5
6
1
2
4
2
6
1
7
6
2
3
1
6
3
8
4
2
3
8
7
5
4
2
7
1
Hard 10
Complete: 0%
6
2
3
9
8
4
4
8
6
5
3
4
7
2
8
4
3
5
1
7
6
2
9
5
5
6
8
3
9
2
6
9
5
8
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