Normal sudoku rules apply. Adjacent digits along the green line have a difference of at least five. No two orthogonally connected cells can sum to 5. Cells separated by a black dot have digits in which one is double the other.
Normal sudoku rules apply. Adjacent digits along the green line have a difference of at least five. No two orthogonally connected cells can sum to 5. Cells separated by a black dot have digits in which one is double the other.