Normal 9x9 sudoku rules apply. Digits separated by a black dot are in a 1:2 ratio. The difference between two adjacent digits on a coloured line indicates exactly how many pairs of adjacent digits along that line have that exact difference.
Normal 9x9 sudoku rules apply. Digits separated by a black dot are in a 1:2 ratio. The difference between two adjacent digits on a coloured line indicates exactly how many pairs of adjacent digits along that line have that exact difference.