Logic Masters Deutschland e.V.

Rules:

Saturation - There are four intersecting 5x5 sub-grids in the main 9x9 grid as indicated by the black lines.
Fill each sub-grid with digits 1-5 so that no digit repeats in any row or column of the sub-grid.

Chaos Construction - Within each 5x5 sub-grid, construct five orthogonally connected regions containing the digits 1-5 once each.
Two cells in the intersection of two sub-grids lie in the same 5-cell region of one sub-grid if and only if they lie in the same 5-cell region of the other sub-grid.

Chaotic Kropki - Black dots separate digits in a 1:2 ratio.
White dots separate consecutive digits.
Cells separated by any such dot must belong to different 5-cell regions in the corresponding sub-grid.
The dot also represents the only edge that these regions share.
Not all such dots may be given.

Thermometer - Digits on a grey thermometer must strictly increase from the bulb-end.

Example solution (7x7 main grid with intersecting 4x4 sub-grids):

Puzzle: Try it on Sudokupad.