xref: /plan9-contrib/sys/games/lib/sudoku/boards/medium-2005-02-28.su (revision a8e650f8b6804428114023f948a3fb1a4d7b82d3) 
1.4.5.7...
2.1..3.4.2
3...2.83..
42.....836
5.........
6761.....4
7..68.3...
84.9.2..5.
9...1.4.8.
10342517968
11815639472
12697248315
13254971836
14938465721
15761382594
16176853249
17489726153
18523194687
19