Normal Sudoku rules apply.
Lines in a cell with a value of N denote that, in the directions of the lines and at a distance of N, the two cells add up to N.
If a cell contains more than two lines, you have to find the pairings.
The grid is toroidal, so if r1c4 was 8, r1c5 and r9c4 would sum up to 8.
Some possible lines are not given.
Enjoy!
Solution code: Column 8, column 9
on 16. November 2020, 00:11 by marcmees
Not that many possibilities when on a straightforward but nice logical path. Thanks.
on 13. November 2020, 05:43 by cam
This was a lot of fun, but I think puzzles like this tend to more tedious than difficult. It felt algorithmic going through each square and slowly chipping away at the possibilities.