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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 #23

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

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

Answer Key

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

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