harvey/sys/games/lib/sudoku/boards/hard-2005-04-03.su

.2...6.7.
..62.5...
3..9....1
4...3.1..
15.....34
..8.5...9
9....3..6
...8.94..
.8.1...9.
821346975
796215348
345987621
469738152
157692834
238451769
914573286
572869413
683124597