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Zipped Up through the Fog
• Normal Sudoku rules apply.
• The grid is partially covered with fog. Correctly placed digits will clear the fog around that cell. No guessing is required.
• THERE IS ONE, AND ONLY ONE, purple Zipper Line, along which each pair of digits that are the same distance from the line's central cell (indicated by a filled purple circle), must sum to the digit in that central cell.
• A black dot between cells indicates cell values with a 2:1 ratio. A white dot between cells indicates cells with consecutive values. Not all dots are given.
• Adjacent cells connected with an X must sum to 10.
• Cells with a filled grey square must be even.
• The grid is partially covered with fog. Correctly placed digits will clear the fog around that cell. No guessing is required.
• THERE IS ONE, AND ONLY ONE, purple Zipper Line, along which each pair of digits that are the same distance from the line's central cell (indicated by a filled purple circle), must sum to the digit in that central cell.
• A black dot between cells indicates cell values with a 2:1 ratio. A white dot between cells indicates cells with consecutive values. Not all dots are given.
• Adjacent cells connected with an X must sum to 10.
• Cells with a filled grey square must be even.