Printable Hard Sudoku

Set 1qvemmu. 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
4 9 8
1 9
7 9
4 3 8 6
2 7
1 6 5 3 2
8 6 1 5
7 5 8
8 9 2 6
Hard #2
5 9 3 6 8
6 2
3 8
8 5 9
3 4
9 6 7 4
7 6 4
4 1 9 7
2 4 9 3
Hard #3
9 7 3 4
7 9 6 8
1 3 5
3 6 7
2 3 9
8 5
1 2 9
3 8 2
6 2 7 1
Hard #4
5 1 4 6 8
4 9
5 8
2 8 6 9
1 9 6 7
9 3 5
9 7 1 4 5
1 5 3
6
Hard #5
5 9 2 8
8 1 4 2
2 7 6 5
8
8 4 1
7 3
1 9 8 5 6 4
3 9 7
6 3
Hard #6
6 4 7
7 3 2 8
5
8 6 4 5 2
3 8 7
1 7 4 3
4 5 6 3
4 1 9
2 4
Hard #7
4 9 2
1 2 3
2 8 7 9
6 9 1 3
4 8 6 5 1
2 8 6 7 9
5 6 8
3 8
Hard #8
1 6 2 8 7
9 6 2 4
7
6 7 1 4
4 7 5
1 2
2 3 8 1 6
9 5
8 5 4

Answers are on the last page of the PDF.

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Techniques for hard puzzles

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