Difficulty is likely more around 3.5. Enjoy the puzzle!
Solution code: Column 2 followed by column 8 top to bottom, 18 digits no spaces.
on 5. July 2023, 08:49 by benzonitrile
I loved this! Thank you for setting such a wonderful puzzle :)
on 2. July 2023, 06:00 by mobiustrip
Best renban/arrow combination puzzle I have ever seen - loved it!
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Thank you! - Jagga
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