困难 Sudoku 2013 to print (free PDF)
Download every 困难 Sudoku from 2013 — 365 puzzles — as a free printable PDF.
预览
7
5
1
1
3
3
2
4
9
1
5
2
1
8
3
6
3
7
9
8
7
5
6
2
9
6
4
8
6
2
4
5
7
2
1
5
7
9
4
3
7
9
6
6
7
3
5
2
1
9
8
3
1
6
2
4
9
1
6
4
2
5
7
8
9
4
6
7
9
8
7
4
2
3
2
6
1
4
2
6
3
1
7
4
3
5
8
1
7
8
6
7
2
9
3
1
5
3
2
3
8
4
7
8
1
1
4
9
5
6
4
2
5
4
6
5
7
1
3
9
1
7
8
2
3
4
2
8
2
6
5
8
7
4
9
7
2
3
6
1
5
7
3
2
6
1
5
8
2
6
1
5
7
9
8
3
9
7
2
8
6
4
5
7
3
2
6
9
3
4
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