Scotch Egg
(Published on 20. July 2026, 15:29 by billybeth)
The central box and the whole grid are magic squares (all three/nine cell long diagonal, horizontal and vertical lines sum to the same number and cannot repeat digits).
The tartan line surrounding the central box is a Scottish Sum Line (going in one direction only) where each digit is the sum of the two preceding cells (if the digits sum to more than ten then only the unit digit is used).
Purple lines are consecutive digits in any order.
Solve online:Sudokupad
billybeth tips at:billybeth Sudoku secrets channel
Solution code: top row
Comments
on 8. August 2026, 19:04 by billybeth
added link
on 27. July 2026, 08:47 by QuiltyAsCharged
Interesting idea with the Scottish Sum Line. I wasn't really sure how to solve it, other than just experimenting until I stumbled on a working pattern
on 20. July 2026, 23:05 by billybeth
clarified ruleset
