Sandwich
A clue outside the grid is the sum of the digits sandwiched between the 1 and the 9 in the corresponding column.
German Whispers
Neighbouring digits on a green line have a difference of at least 5. Digits can repeat on the line if allowed be the other rules.
Links: f-puzzles / ctc-app
Solution code: column 9
on 11. December 2022, 23:37 by Mr.CHEN
My 500th Sudoku solved in the LMD!
In fact, I specially chose this to celebrate my achievement in the 500 solution. Although it is a little difficult to break-in, it will be easy once you break-in the back!
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Oh wow, thanks for chosing my puzzle for that occasion :-) 500 solved puzzles is quite a milestone, especially within just seven weeks!
on 2. September 2022, 04:19 by PepperWood
Thanks for the fun homage! Fun solve
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Thank you, glad you liked it :-)
on 1. September 2022, 16:52 by Snookerfan
Very nice puzzle. Way trickier than 2 stars in my opinion, thank you so much!
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Thanks :-) Yeah, I think it's on the harder side of 2 stars.