harvey/sys/games/lib/sudoku/boards/hard-2005-05-07.su

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..645.8..
..7.3...1
1....9.2.
8.......6
.6.2....4
7...9.2..
..1.239..
...8...13
589617432
316452879
427938561
154769328
872345196
963281754
738196245
641523987
295874613