/usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-08.su

Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-08.su


....7....
.6.8.4.3.
8.....62.
...2.1..7
1.3...8.5
9..5.8...
.94.....6
.5.1.9.8.
....4....
439672518
562814739
871953624
685291347
123467895
947538261
294385176
756129483
318746952

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