Normal Sudoku Rules apply.
The grey line is a palindrome that reads the same from both ends (eg. 1-2-3-2-1).
Black dots have a ratio of 1:2, white dots are consecutive, not all dots are given.
Link to Bremster's solve of the Puzzle:
Solution code: Row 6 from left to right
on 1. June 2022, 09:45 by lost creativity
Added link to solving video
on 25. May 2022, 14:03 by Bankey
The puzzle is hard only because one doesn't have too many colour options on the apps. Enjoyed solving. Thanks, @ lost creativity :) ( You certainly have not lost any creativity !!)
on 14. May 2022, 20:17 by sacklunch
Success! Thanks again for the very fun puzzle.
on 14. May 2022, 04:26 by sacklunch
I have tried this puzzle three times and found myself in a corner each time. I will prevail! It's a great design.
on 13. May 2022, 22:25 by Gullie
Very nice, took me a full hour to solve, but enjoyed every second.
on 13. May 2022, 18:10 by Pisoni
Nice puzzle! It took me a few hours to solve
on 13. May 2022, 04:06 by Dermerlin
thx for the nice puzzle. I'd need more colours with such a long palindrom ;)
on 12. May 2022, 23:46 by Johannes Quack
Very good!
on 12. May 2022, 23:02 by Steven R
Nice one! Congrats on your first puzzle on this portal.