Normal Sudoku rules apply. Each row, column, and 3x3 box contains each number from 1 to 9 exactly once.
The black dots represent a 1:2 ratio and the white dots represent a difference of 1 between two neighbouring cells. NOT all possible black and white dots are indicated; a.k.a. no negative constraint.
The puzzle is also available online.
Solution code: Row 2 and Column 8
on 17. April 2021, 08:40 by Pallal
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