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Standard 9x9 sudoku rules apply. Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit. Nonconsecutive: Any two orthogonally adjacent cells cannot contain consecutive digits. XV: Digits separated by an X sum to 10, those separated by a V sum to 5. Not all Xs and Vs are necessarily given. Global Entropy: Every 2x2 box contains one low, medium, and high digit (123, 456, 789).
XV and Entropy
By addie
Standard 9x9 sudoku rules apply. Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit. Nonconsecutive: Any two orthogonally adjacent cells cannot contain consecutive digits. XV: Digits separated by an X sum to 10, those separated by a V sum to 5. Not all Xs and Vs are necessarily given. Global Entropy: Every 2x2 box contains one low, medium, and high digit (123, 456, 789).