Normal Sudoku
German Whispers Line: Adjacent digits have a minimum difference of 5.
Column Indexers: A digit in a red cell indexes its column number in its row. For example, if row 4/column 1 contains a 7, then row 4/column 7 contains a 1.
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Solution code: Row 1
on 15. August 2025, 11:05 by Gentle
Updated to correct link.
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