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- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Dutch Whispers: Along orange lines, digits must differ from their neighbors by at least 4. - Renban: Purple lines contain a non-repeating set of consecutive digits in any order. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present). - Positive Diagonal: Digits along the positive diagonal (R9C1 to R1C9) must be unique. - Negative Diagonal: Digits along the negative diagonal (R1C1 to R9C9) must be unique.
Whispers of Symmetry
By starchacer
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Dutch Whispers: Along orange lines, digits must differ from their neighbors by at least 4. - Renban: Purple lines contain a non-repeating set of consecutive digits in any order. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present). - Positive Diagonal: Digits along the positive diagonal (R9C1 to R1C9) must be unique. - Negative Diagonal: Digits along the negative diagonal (R1C1 to R9C9) must be unique.