Normal sudoku rules apply. Along the marked diagonals the differences between neighbouring digits increase from left to right, such that the difference of the first pair is 1, of the second pair 2, of the third pair 3, etc.
Normal sudoku rules apply. Along the marked diagonals the differences between neighbouring digits increase from left to right, such that the difference of the first pair is 1, of the second pair 2, of the third pair 3, etc.