Very hard Sudoku to print (free PDF)
Download free very hard Sudoku to print in PDF, ready for A4 or US Letter. A demanding challenge, one notch below evil.
Sample puzzles
2
8
3
4
6
6
9
4
6
3
3
9
7
1
5
6
9
2
4
2
7
1
2
7
5
4
7
3
1
4
6
3
7
2
8
9
4
9
6
5
5
2
2
4
4
7
8
9
5
6
1
2
5
7
8
9
4
2
8
1
5
8
6
9
6
5
3
7
9
4
8
2
9
3
6
2
4
7
6
7
2
5
4
3
6
5
7
8
3
1
2
5
4
9
7
8
4
2
1
9
6
9
8
5
5
8
7
5
2
1
6
3
5
1
4
8
5
4
7
1
5
4
3
7
1
4
9
5
3
9
8
1
6
7
2
1
9
5
4
2
8
7
5
3
2
4
1
9
5
9
2
6
7
2
5
2
Why this level?
A very hard Sudoku gives few clues, so plain scanning rarely helps. You will lean on full candidate marks and techniques like pointing pairs and box/line reduction.
How to print
Click "Download book", open the PDF and pick A4 or US Letter. Six puzzles per page; verify with the separate solutions PDF.
Solving tips
Keep complete candidate notes and watch for locked candidates that eliminate options across a box and its row or column.
Frequently asked questions
How hard is very hard compared to evil?
Very hard sits just below our evil level: advanced techniques, but slightly more forgiving.
What should I expect from a very hard Sudoku?
Advanced techniques throughout and few clues, but a notch more forgiving than our evil grids.
Which techniques help most here?
Naked and hidden pairs, X-wing and pointing pairs; meticulous candidate notes keep you from stalling.