Logic Masters Deutschland e.V.

This is my first sudoku. I'm not sure about difficulty, I'd say 2.5 stars personally. It is themed around the Ferrari F1 team.

Rules

Standard sudoku rules apply.

The red lines follow these rules, according to the orientation of the line that connects the two cells:

• vertical line: the cell above is greater than the lower cell;
• horizontal line: the two cells are consecutive (equivalent of a white dot in kropki);
• diagonal line: the cell on the upper row (independently from the right-left positioning) is greater OR EQUAL to the cell on the lower row.

Additonally, cells on red lines follow anti-knight rule (cells a knight move apart shall not have the same value). Anti-knight is therefore only applied on a pair of cells if at least one of them is part of a line.

Note that the little line that goes from r6c2 to r7c3 is separated by the larger one.

The digit (1) inside the red circle has to be repeated twice in positions that are a knight move away (as in chess) from it.

The puzzle is solvable online at F-puzzles.

More about the theme

The rulest and the aesthetic of the puzzle aren't random: first of all, the Ferrari is represented by a ramping horse, which quickly lead to an anti-knight rule, as a wild horse doesn't want a knight of course.

Next, the bigger red line is meant to (vaguely) represent a Formula 1's front wing

Also, the red circle with the one is the pole position: two "ramping horses" (the two Ferrari drivers) are fighting to get it and are just a few cells away from it!

The given digits are also intentional: 55 is Carlos Sainz's number and 16 is Charles Leclerc's (the two current Ferrari drivers). The 31 on top is the sum of World Driver Championships and World Constructor Championships won by Ferrari as of 2023; while 74 are the season entries of Ferrari in Formula 1 as of 2023.