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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 #16

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

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

Answer Key

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

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