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- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - Global Modularity: Every 2x2 box must contain at least one digit from each of the sets {1,4,7}, {2,5,8} and {3,6,9}. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present). - Extra Regions: Every shaded region must also contain the digits 1 through 9 without repeats.
A Decade of Residual Whispers
By starchacer
- Normal Sudoku Rules: Fill each row, column, and 3x3 box with the digits 1-9 once each. - Global Modularity: Every 2x2 box must contain at least one digit from each of the sets {1,4,7}, {2,5,8} and {3,6,9}. - German Whispers: Along green lines, digits must differ from their neighbors by at least 5. - Killer Cages: Digits in cages must not repeat and must sum to the number in the upper left corner of the cage (if present). - Extra Regions: Every shaded region must also contain the digits 1 through 9 without repeats.