harvey/sys/games/lib/sudoku/boards/medium-2005-04-05.su

17.5.2...
.53..1..7
..69....2
.....8.4.
.6.....3.
.4.3.....
7....39..
8..7..52.
...2.4.13
179542368
253861497
486937152
327198645
968475231
541326879
712653984
834719526
695284713