Hard Sudoku, Pack 4
Hard Sudoku, Pack 4
six hard puzzles · puzzleprintery.com
six hard puzzles · puzzleprintery.com
Six hard sudoku puzzles (requires deeper elimination beyond singles). Every grid has exactly one solution, verified by our generator. Print this page or download the six-per-page PDF.
- Pack 4 contains six hard sudoku puzzles with 27 to 28 clues each.
- Every grid has exactly one solution, proven by the generator before publication.
- This difficulty is graded by technique: requires deeper elimination beyond singles.
Puzzle 1 (28 clues)
| 5 | 1 | 4 | 3 | |||||
| 8 | 4 | 5 | 6 | |||||
| 7 | 5 | 1 | ||||||
| 6 | ||||||||
| 5 | 2 | 3 | 7 | 9 | ||||
| 2 | ||||||||
| 4 | 2 | 1 | ||||||
| 1 | 8 | 4 | ||||||
| 6 | 1 | 7 | 9 |
Puzzle 2 (27 clues)
| 1 | 2 | |||||||
| 1 | 2 | 9 | ||||||
| 6 | 4 | 2 | 9 | |||||
| 8 | 9 | |||||||
| 6 | 1 | 8 | 5 | 3 | ||||
| 4 | 2 | |||||||
| 5 | 3 | 2 | 4 | |||||
| 7 | 6 | 8 | ||||||
| 9 | 5 |
Puzzle 3 (28 clues)
| 5 | 8 | |||||||
| 2 | 5 | 6 | ||||||
| 4 | 3 | 2 | ||||||
| 6 | 3 | 4 | 2 | |||||
| 4 | 5 | 1 | 7 | |||||
| 1 | 9 | 4 | 8 | |||||
| 1 | 8 | 7 | ||||||
| 2 | 6 | 3 | ||||||
| 7 | 3 |
Puzzle 4 (28 clues)
| 2 | ||||||||
| 2 | 6 | 5 | ||||||
| 5 | 6 | 1 | 3 | 8 | ||||
| 3 | 1 | 7 | 4 | |||||
| 2 | 9 | |||||||
| 1 | 9 | 8 | 5 | |||||
| 1 | 7 | 6 | 8 | 5 | ||||
| 8 | 5 | 3 | ||||||
| 7 |
Puzzle 5 (28 clues)
| 8 | 9 | 1 | 7 | |||||
| 1 | 4 | 8 | ||||||
| 2 | 9 | 4 | ||||||
| 5 | 7 | 4 | ||||||
| 4 | 1 | 5 | ||||||
| 2 | 8 | 7 | ||||||
| 5 | 3 | 7 | ||||||
| 6 | 3 | 5 | ||||||
| 8 | 5 | 6 |
Puzzle 6 (28 clues)
| 9 | 4 | 8 | ||||||
| 8 | 1 | 4 | 2 | |||||
| 6 | 8 | |||||||
| 4 | 5 | 1 | ||||||
| 6 | 3 | 4 | 5 | |||||
| 7 | 6 | 9 | ||||||
| 3 | 1 | |||||||
| 3 | 4 | 5 | 7 | |||||
| 6 | 4 | 8 |
Show solutions
Puzzle 1 (28 clues)
| 5 | 9 | 1 | 6 | 7 | 4 | 2 | 8 | 3 |
| 8 | 4 | 3 | 5 | 1 | 2 | 9 | 6 | 7 |
| 2 | 7 | 6 | 8 | 3 | 9 | 4 | 5 | 1 |
| 9 | 3 | 8 | 4 | 6 | 5 | 1 | 7 | 2 |
| 1 | 5 | 2 | 3 | 8 | 7 | 6 | 9 | 4 |
| 7 | 6 | 4 | 9 | 2 | 1 | 8 | 3 | 5 |
| 4 | 2 | 9 | 7 | 5 | 6 | 3 | 1 | 8 |
| 3 | 1 | 7 | 2 | 9 | 8 | 5 | 4 | 6 |
| 6 | 8 | 5 | 1 | 4 | 3 | 7 | 2 | 9 |
Puzzle 2 (27 clues)
| 5 | 7 | 9 | 8 | 3 | 6 | 1 | 4 | 2 |
| 1 | 8 | 3 | 4 | 7 | 2 | 9 | 5 | 6 |
| 6 | 4 | 2 | 5 | 9 | 1 | 8 | 7 | 3 |
| 3 | 5 | 8 | 9 | 2 | 7 | 4 | 6 | 1 |
| 2 | 6 | 4 | 1 | 8 | 5 | 7 | 3 | 9 |
| 7 | 9 | 1 | 3 | 6 | 4 | 2 | 8 | 5 |
| 8 | 1 | 6 | 7 | 5 | 9 | 3 | 2 | 4 |
| 4 | 2 | 7 | 6 | 1 | 3 | 5 | 9 | 8 |
| 9 | 3 | 5 | 2 | 4 | 8 | 6 | 1 | 7 |
Puzzle 3 (28 clues)
| 7 | 6 | 9 | 4 | 5 | 2 | 3 | 8 | 1 |
| 3 | 2 | 1 | 7 | 8 | 9 | 5 | 4 | 6 |
| 4 | 8 | 5 | 3 | 1 | 6 | 7 | 9 | 2 |
| 6 | 9 | 3 | 8 | 4 | 7 | 1 | 2 | 5 |
| 8 | 4 | 2 | 5 | 6 | 1 | 9 | 7 | 3 |
| 5 | 1 | 7 | 2 | 9 | 3 | 4 | 6 | 8 |
| 1 | 3 | 4 | 9 | 2 | 8 | 6 | 5 | 7 |
| 2 | 5 | 6 | 1 | 7 | 4 | 8 | 3 | 9 |
| 9 | 7 | 8 | 6 | 3 | 5 | 2 | 1 | 4 |
Puzzle 4 (28 clues)
| 8 | 7 | 4 | 2 | 3 | 5 | 1 | 9 | 6 |
| 2 | 3 | 1 | 9 | 6 | 8 | 5 | 4 | 7 |
| 9 | 5 | 6 | 1 | 7 | 4 | 3 | 8 | 2 |
| 3 | 8 | 5 | 6 | 1 | 9 | 7 | 2 | 4 |
| 7 | 6 | 2 | 5 | 4 | 3 | 9 | 1 | 8 |
| 1 | 4 | 9 | 7 | 8 | 2 | 6 | 3 | 5 |
| 4 | 1 | 7 | 3 | 2 | 6 | 8 | 5 | 9 |
| 6 | 9 | 8 | 4 | 5 | 1 | 2 | 7 | 3 |
| 5 | 2 | 3 | 8 | 9 | 7 | 4 | 6 | 1 |
Puzzle 5 (28 clues)
| 3 | 6 | 4 | 8 | 5 | 9 | 2 | 1 | 7 |
| 9 | 7 | 1 | 3 | 4 | 2 | 8 | 6 | 5 |
| 5 | 2 | 8 | 7 | 6 | 1 | 9 | 4 | 3 |
| 8 | 3 | 5 | 6 | 7 | 4 | 1 | 2 | 9 |
| 7 | 4 | 2 | 9 | 1 | 3 | 6 | 5 | 8 |
| 6 | 1 | 9 | 2 | 8 | 5 | 7 | 3 | 4 |
| 2 | 5 | 3 | 1 | 9 | 8 | 4 | 7 | 6 |
| 1 | 9 | 6 | 4 | 3 | 7 | 5 | 8 | 2 |
| 4 | 8 | 7 | 5 | 2 | 6 | 3 | 9 | 1 |
Puzzle 6 (28 clues)
| 9 | 2 | 7 | 4 | 6 | 3 | 5 | 8 | 1 |
| 8 | 1 | 4 | 9 | 5 | 7 | 2 | 3 | 6 |
| 3 | 5 | 6 | 2 | 8 | 1 | 9 | 7 | 4 |
| 2 | 4 | 8 | 5 | 7 | 9 | 6 | 1 | 3 |
| 6 | 3 | 9 | 8 | 1 | 2 | 7 | 4 | 5 |
| 5 | 7 | 1 | 3 | 4 | 6 | 8 | 9 | 2 |
| 4 | 8 | 2 | 7 | 3 | 5 | 1 | 6 | 9 |
| 1 | 9 | 3 | 6 | 2 | 8 | 4 | 5 | 7 |
| 7 | 6 | 5 | 1 | 9 | 4 | 3 | 2 | 8 |