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Description
Apply sudoku rules. The puzzle is toroidal and the left/right and top/bottom edges of the grid map to each other. The digits 1 to 9 will appear once in each of the 10 rows, 10 columns, and 10 3Ã3 regions. The outer-edge of the grid (where the repeat occurs) is light gray/dark gray to help identify the wrapping. Note that the grid contains some black squares which will not contain any numbers.
Apply sudoku rules. The puzzle is toroidal and the left/right and top/bottom edges of the grid map to each other. The digits 1 to 9 will appear once in each of the 10 rows, 10 columns, and 10 3Ã3 regions. The outer-edge of the grid (where the repeat occurs) is light gray/dark gray to help identify the wrapping. Note that the grid contains some black squares which will not contain any numbers.
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