/usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-02.su

Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-04-02.su


.....96..
...15....
58..37..4
3......8.
1.6...4.7
.2......6
7..86..91
....23...
..37.....
237489615
469152873
581637924
374516289
156298437
928374156
742865391
615923748
893741562

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