Logic Masters Deutschland e.V.

Hats off for those who enjoyed full-rank, yin yang or even CC sudoku, I find those variant very difficult. Here's my attempt at a 4x4 full-rank sudoku.

Normal 4x4 sudoku rules apply.

Full-rank: An outside number from 1–16 if given indicates the ordinal rank of that row or column (read as a single four-digit number) when all 16 possible row/column orientations in the final grid are sorted from lowest to highest. In this puzzle all ranks are unique.

Divisor cells (custom rule): A digit marked with σ must divide each of the four rankings meeting at that cell (horizontal, vertical, and their reversals). Not all divisor cells are given.

CTC Link

Puzzle:

For example if the divisor cell value is 3, then the ranking that passes 3 could either be rank 3, 6, 9, 12, or 15. I only found 2 version but I decided to upload this version first since I hesitate to upload more than 1 puzzle in a single post.