困难 Sudoku 2009 to print (free PDF)
Download every 困难 Sudoku from 2009 — 365 puzzles — as a free printable PDF.
预览
7
8
1
6
9
6
7
5
2
1
4
3
6
7
3
2
2
4
3
6
8
1
2
9
4
9
1
3
5
9
6
4
3
8
9
7
2
8
6
5
2
7
4
1
4
4
9
3
5
9
1
4
7
6
9
2
1
8
1
6
7
5
3
1
2
9
4
3
5
1
3
1
8
8
9
5
6
9
1
7
5
4
1
5
2
7
4
7
2
8
2
6
1
5
4
9
3
3
1
2
6
7
5
6
5
1
8
4
9
3
2
8
6
3
9
4
2
5
9
6
7
8
6
3
4
2
9
8
9
1
9
5
6
7
6
2
3
5
7
1
2
3
3
1
6
4
9
5
8
3
9
1
3
9
6
3
4
2
8
1
7
5
7
2
6
3
2
1
5
8
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