Very hard printable Sudoku (free PDF with answers)
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 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
2
3
9
4
8
4
1
9
7
1
6
9
3
4
7
2
1
9
3
5
9
4
3
3
8
1
8
5
7
9
3
4
8
9
4
2
5
3
7
9
6
5
7
8
4
3
4
3
7
8
9
1
4
7
7
5
6
8
2
9
5
4
2
8
2
6
3
5
3
9
2
9
6
7
8
6
7
2
8
9
3
6
5
4
2
9
9
6
4
3
8
7
5
9
6
4
7
5
1
8
1
4
2
6
9
3
6
4
7
6
5
7
4
2
7
9
1
7
1
8
2
8
4
3
5
6
6
5
9
2
8
9
3
2
7
4
8
2
1
3
1
4
8
5
3
6
5
3
9
3
8
1
9
5
4
1
7
2
6
4
9
Why these puzzles?
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
Pick how many puzzles and A4 or US Letter, then press "Generate PDF". Six puzzles per page by default; 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.