harvey/sys/games/lib/sudoku/boards/medium-2005-05-18.su

....4....
57.1.6..2
.2..9.78.
.5....8..
.6.7.9.5.
..9....1.
.42.6..3.
6..3.4.28
....7....
981247365
573186942
426593781
254631879
168729453
739458216
842965137
697314528
315872694