Normal sudoku rules apply.
Adjacent digits along a line differ by 4 or 5.
Solve in SudokuPad
Solution code: Row 1
on 29. August 2026, 21:20 by Exigus
Lovely coloring (or labelling) puzzle, and aptly named. Thanks!
on 29. August 2026, 15:33 by GeorgeTheToad2
Superb fun, I decided to use letters rather than colours which helped. Lots of lovely interactions between the lines.
on 28. August 2026, 23:15 by Qodec
Very enjoyable!
on 28. August 2026, 22:38 by Onyx
Difficult break-in, took me a while to increase constraints, very interesting rule nonetheless!
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