harvey/sys/games/lib/sudoku/boards/medium-2005-04-15.su

1.9..7...
.36..8...
..7..1.28
...81...6
..5...7..
9...45...
42.1..5..
...5..61.
...2..9.4
189327465
236458197
547961328
374819256
815632749
962745831
428196573
793584612
651273984