/usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-23.su

Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-23.su


.3..47.8.
.261..7..
4.......6
3..42....
.4.7.3.5.
....98..3
5.......8
..8..437.
.7.86..9.
931647285
826135749
457289136
385426917
649713852
712598463
594371628
268954371
173862594

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