harvey/sys/games/lib/sudoku/boards/hard-2005-05-15.su

7...1...6
..25.4...
..4.9....
2....58.3
.5.2.6.7.
1.79....2
....8.3..
...3.19..
4...2...8
735812496
982564731
614793285
269175843
358246179
147938652
521489367
876351924
493627518