Logic Masters Deutschland e.V.

Mayfair
This puzzle combines the non-touching constraint with region sum lines, both of which are among my favourite constraints. Region sum lines in particular is something I have only explored quite recently, and this puzzle includes most of the more interesting interactions I stumbled upon while setting. Your feedback is appreciated, and I hope you enjoy Mayfair :)

Rules
Sudoku: Normal sudoku rules apply.
Region Sum Lines: Region sum lines must have an equal sum N within each 3x3 box they pass through.
Anti-King: Two cells separated by a king's move (in chess) must not contain the same digit.

Solve online: CTC App (with solution check) | F-Puzzles

In setting the first version of this puzzle, I ended up creating a grid that uses quite a gimmicky solve path. I won't publish it as its own puzzle, but I will leave the link to it as a hidden comment, in case you find the combination of these constraints interesting.