xref: /plan9-contrib/sys/games/lib/sudoku/boards/hard-2005-03-19.su (revision a8e650f8b6804428114023f948a3fb1a4d7b82d3) 
1..19....3
29..7..16.
3.3...5..7
4.5......9
5..43.26..
62......7.
76..1...3.
8.42..7..6
95....68..
10761928453
11925743168
12438615927
13357461289
14894372615
15216589374
16689154732
17142837596
18573296841
19