shithub: riscv

ref: 57f8b3d1acf273a88568c49d0b83b6863485b9e0
dir: /sys/games/lib/sudoku/boards/easy-2005-03-09.su/

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34...1..8
.56......
.1.82....
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4..3.5..2
98...25..
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342651978
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719823465
625189347
471365892
983472516
137248659
564937281
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