After keeping my previous Zipper Lines puzzles relatively focused on pure "zipper logic", this one requires more aadvanced techniques to solve. Thanks to the CtC-discord for testing and to Jaze for inventing the Zipper ruleset.
Puzzle Link: Play on SudokuPad
Click here to search for more Zipper Lines puzzles on LMD. If you've never solved a puzzle with this ruleset before, I'd recommend A Totally Balanced Approach as an introduction.
Solution code: Row 9 (9 digits)
on 27. November 2023, 23:22 by wand
slapping my forehead right now. a pretty tough solve, wish I'd read the description for the hint!
edit: actually after watching ctc's solve I see I missed some other, more helpful spots
on 24. November 2023, 10:41 by GeorgeTheToad2
That was tricky but very enjoyable. Thank you for sharing.
on 16. November 2023, 19:28 by Melriken
I placed all the 9s and a handful of 8s and then got totally lost. A bit of math later and things started to flow again, this was my first zipper so that probably was at fault. Very enjoyable.
on 15. November 2023, 02:43 by Graphael
Beautiful puzzle! I was never at a complete loss for what to do next, yet it still took me more than an hour.
on 15. November 2023, 01:52 by ThePedallingPianist
Awesome puzzle! The break-in is well signposted and the flow after that is beautiful! Thank you :)
on 14. November 2023, 21:23 by StephenEsven
Veri Nice. A bit harder than 3 in my book, but it was my first zipper puzzle
on 14. November 2023, 19:55 by SamuPiano
This was my first zipper puzzle and it was really enjoyable! The solve path was intuitive and there were a few "aha" moments that made me smile. Excellent puzzle!
on 14. November 2023, 16:52 by Flinty
Very clever stuff.
on 14. November 2023, 16:40 by Mad-Tyas
Fun puzzle!