harvey/sys/games/lib/sudoku/boards/medium-2005-02-15.su

.6.531..7
.7....8.5
.....74..
2...63...
.5.....2.
...42...6
..21.....
4.8....5.
5..849.3.
864531297
173294865
925687413
241763589
657918324
389425176
732156948
498372651
516849732