/usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-05-22.su

Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/games/lib/sudoku/boards/hard-2005-05-22.su


..6..2...
....5.4.2
.7.49..1.
7.4..92..
1.......8
..91..5.3
.1..46.5.
6.5.7....
...5..3..
546312897
981657432
273498615
754839261
132765948
869124573
318246759
625973184
497581326

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