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Printable Hard Sudoku Puzzles

Four free printable hard Sudoku puzzles on a single sheet, with solutions on a separate page so you can check your work without spoiling the grid. Hard puzzles start with just 29–31 clues and rely on locked candidates and sometimes pairs. Expect each one to take a good sitting — they are meant for a quiet evening or a weekend.

Prints on one Letter or A4 sheet, with solutions on page two. Use Ctrl+P / ⌘+P if the button doesn't open your print dialog.

Hard Sudoku Sheet — 4 Puzzles

Puzzle 1

30 clues · play online

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

Puzzle 2

29 clues · play online

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

Puzzle 3

30 clues · play online

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

Puzzle 4

29 clues · play online

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

Solutions

Solutions print on a separate page. Given numbers are shown in bold.

Solution 1

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

Solution 2

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

Solution 3

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

Solution 4

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

Tips for Hard Puzzles

Need More Hard Sudoku Sheets?

This sheet always shows the same four puzzles. For fresh ones, the printable Sudoku maker can build a hard sheet for any date, with an answer key:

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Puzzles are taken from the Sudoku365 daily archive (29–31 clues each, one unique solution). Last reviewed on October 31, 2026.