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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 #9

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

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

Answer Key

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

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