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.
Sudoku book (PDF)
Download the free very hard sudoku book in PDF: 20, 60 or 120 puzzles, with the solutions in a separate PDF. Ready to print on A4 or US Letter.
What to print
Orientation
Content
Sample puzzles
4
6
3
9
3
4
4
3
9
1
5
2
1
7
9
4
1
7
8
8
5
5
4
8
7
2
7
2
6
4
4
9
6
3
3
2
5
6
7
1
3
7
8
2
3
4
6
7
4
1
8
3
5
4
8
7
5
1
7
2
6
5
3
5
9
1
3
4
8
4
9
3
1
2
9
5
4
6
1
3
1
5
2
7
5
9
3
8
1
5
7
6
4
2
7
3
7
6
1
2
9
2
3
7
4
8
2
4
6
5
6
5
2
7
3
9
4
5
8
1
7
9
3
8
7
5
5
8
7
3
4
8
2
3
1
4
2
7
5
6
1
8
5
6
4
6
2
3
7
8
2
1
7
1
1
7
9
6
3
5
4
7
2
9
5
6
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.