xref: /plan9-contrib/sys/games/lib/sudoku/boards/hard-2005-03-14.su (revision a8e650f8b6804428114023f948a3fb1a4d7b82d3) 
14..57....
2..98..57.
3.....1..6
4.3....86.
5..86.91..
6.65....2.
78..4.....
8.94..36..
9....85..7
10481576392
11629834571
12573291486
13932157864
14748629135
15165348729
16857462913
17294713658
18316985247
19