input.sudoku


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53.|.7.|...
6..|195|...
.98|...|.6.
-----------
8..|.6.|..3
4..|8.3|..1
7..|.2.|..6
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.6.|...|28.
...|419|..5
...|.8.|.79

From https://commons.wikimedia.org/wiki/File:Sudoku_Puzzle_by_L2G-20050714_standardized_layout.svg