難しい Sudoku 2005 to print (free PDF)
Download every 難しい Sudoku from 2005 — 159 puzzles — as a free printable PDF.
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5
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4
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1
7
3
1
9
8
7
6
9
3
5
7
8
1
6
4
8
4
7
5
5
1
2
3
5
9
4
9
1
8
7
1
4
3
9
3
5
6
2
2
9
1
3
1
2
4
7
2
8
6
9
3
4
8
6
3
5
7
6
8
1
9
3
7
5
3
8
1
9
9
4
2
6
9
8
6
4
9
8
5
8
2
7
4
5
7
6
3
1
2
8
9
1
3
4
7
8
2
1
6
7
9
2
3
4
6
4
9
6
8
3
1
4
7
1
2
8
2
1
1
5
9
4
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