Printable Hard Sudoku

Set mvl58z. 8 puzzles with an answer key, ready to print.

Hard puzzles start with about 29 givens and need real techniques: pointing pairs, naked pairs and hidden pairs. Paper is a great way to practice them, because you have to keep your own notes honest.

Each free PDF has 8 puzzles, four to a page on US Letter paper, plus an answer key with every solution. Every puzzle has exactly one solution. A new set appears here every day, or you can grab a different set any time.

Puzzles in this set

Hard #1
7 8 2 5
2 4
6 8 9 3
3 7 8
4 3 1 9
5 7
6 1 9
5 2 1
8 5 3 2
Hard #2
4 2 6
6 8 7 5
9 5 1 8
7 3 9 2
7 4 2
8 4
1 4 3
9 4 8
8 9 5
Hard #3
3 8
3 1 6 9
8 9 2 5 7
8 1 6
3 6 5 4
9 5 2
2 4
7 5 4 1
9 2
Hard #4
5 8 3 9
1 9 8 5
8 7 6
1 5 7
2 5 7 8 9
4 8
7 8 6 1
6 4
8 3
Hard #5
3 4
4 9 8 5
8 4 5
1 6
4 5 1
8 1 3 2
2 5 4 8 7
7 2 3 9
6 2
Hard #6
2 8 6 3
1 4
8 6
1 9 4
2 7 5 6
5 1 7 6 8
5 8 1
7 2
2 1 9 3
Hard #7
6 2 8
8 5 3
4 3 1
5 1 7 6
9 2 1
8 1 7
7 1 2 5
5 8 6
3 4 6
Hard #8
1 8 7
1 6 2
6 9 4 3
2 8
7 1 2 6 4 9
3 4 5 9
1 3
3 9
6 9 1

Answers are on the last page of the PDF.

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Techniques for hard puzzles

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