Printable Hard Sudoku

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

Answers are on the last page of the PDF.

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Techniques for hard puzzles

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