Logic Masters Deutschland e.V.

German + Dutch = French? I do not know whether this math is correct, but you can find out by solving the puzzle ;-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.

Normal sudoku rules apply.

German whisper: Neighbouring/adjacent digits along a green line have a difference of at least 5.

Dutch whisper: Neighbouring/adjacent digits along an orange line have a difference of at least 4.

Parity: Neighbouring/adjacent digits along a red line alternate between odd and even.

4-modular: Any sequence of 4 adjacent digits along a turquoise line must include exactly one digit from each of the four modulo 4 groups: {1, 5, 9}, {2, 6}, {3, 7}, and {4, 8}.

Kropki dots: Digits in cells joined by a white dot are consecutive. Digits in cells joined by a black dot are in a 1:2 ratio (i.e., one digit will be double the other). Not all dots are given.

SudokuPad Link

The Erica Series:
Episodes: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

If you liked this puzzle, I recommend trying out my other puzzles:
Symmetrical Fan
Night Club
Cops & Robbers
Broken Flashlight in the Dark
Blown Fuses in Electrical Installation
Important Hour on the Clock
Let Me Introduce Myself
Positive Symmetry
Pretty Odd Shaded Area <- Recommended for you!
It's What You Do in the Dark That Puts You in the Light
What Was the Sum Again?
(+5)-Yang <- Recommended for you!
Disgroup Joints
Find It All
What the Fog?
10-Arrows
Negative 8 YY <- Recommended for you!
Why-Why? <- Recommended for you!