The W-curve Order 2 line (red line) is purely cosmetic. Its internal border's path however is constrained.
Digits along the purple line are a non-repeating consecutive set in strict order.
Digits along the pink line are a non-repeating consecutive set in any order.
Digits along the orange line must differ by at least 4.
A white dot indicates adjacent cells are consecutive and the black dot indicates adjacent cells are double the value of the other cell. Not all dots are shown.
An X indicates adjacent cells sum to 10. Not all Xs are shown.
Link to sudokupad
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Hope you enjoy it. Feel free to give feedback.
Thanks
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Solution code: Row 3
on 8. November 2024, 16:39 by BeachBard
Very well done. Thank you!
on 8. November 2024, 14:15 by PinkNickels
Doh! Thought I was first, but jalebc beat me! Nice puzzle, really fun solve!