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A challenging large-print sudoku for experienced solvers — expect real pencil-work. Verified to have exactly one solution. This sheet is free and printed in large, senior-friendly type — use the Print button above for a paper copy, or choose “Save as PDF” in the print dialog. Prints as the puzzle only — tick the box below if you’d like the answer key included (it prints on its own page).

Sudoku — Hard #25

Instructions: Fill the grid so every row, column, and 3×3 box contains the numbers 1–9.

Level: hard
4
7
1
3
6
8
8
4
2
3
1
7
8
5
1
1
2
4
9
4
6
5
9
4
7
8
1

Answer Key

4
6
8
7
2
5
1
3
9
2
7
5
3
1
9
6
4
8
3
9
1
6
8
4
7
5
2
9
2
4
8
3
1
5
6
7
7
8
3
9
5
6
2
1
4
1
5
6
2
4
7
8
9
3
8
1
2
4
6
3
9
7
5
5
3
9
1
7
2
4
8
6
6
4
7
5
9
8
3
2
1

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