Rules:
Normal sudoku rules apply.
Along green lines (german whispers) digits must exhibit a difference of at least 5 with their neighbouring digits along the line.
Digits in column 1 give the positional index of the digit 1 in their respective row. For example, if we put 3 into r5c1 we would need to put the digit 1 into r5c3. The same applies for columns 4, 6, and 9.
Links:
Solution code: Row 7 followed by column 2 (18 digits, left to right, top to bottom, no spaces/commas).
on 15. January 2023, 04:46 by Nell Gwyn
A cool twist on the 159 subgenre, with some neat interactions between the mechanics!
on 15. January 2022, 16:31 by tallcat
Nice twist on the usual 159. I enjoyed these interactions immensely.
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