Printable Hard Sudoku — 4 Per Page
Four hard sudoku puzzles on a single sheet — a serious challenge batch for experienced solvers.
4 puzzles9×9 · 4 per pagehard
7
4
9
3
1
2
5
6
3
9
2
2
9
5
3
6
1
2
6
7
8
4
1
9
3
7
6
4
8
1
9
7
8
6
2
7
4
1
5
7
9
3
8
5
1
9
6
5
3
4
6
9
2
2
3
7
8
5
4
7
6
2
9
5
3
8
7
1
4
7
3
5
1
5
8
7
2
7
3
6
5
2
6
3
9
8
5
6
9
4
1
3
7
9
6
3
4
7
2
5
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Four freshly generated hard sudoku puzzles per page for experienced solvers who want a batch ready. Hard difficulty requires careful technique and methodical candidate tracking — having multiple puzzles printed at once means you can work through them at your own pace over a day or a weekend. Completely free, no account needed.