Logic Masters Deutschland e.V.

Rules: Put the digits 0 to 8 once each into each row, column and 3x3 box.
Yin Yang: Shade some cells such that all shaded cells are othogonally connected and all unshaded cells are othogonally connected. No 2x2 area is all shaded or all unshaded.
Negators: A shaded cell has a value equal to the negative of its digit for the following rules.
Product-Sum Lines: The product of the values in the squares at either end of a line is equal to the sum of the values along that line.
Dots: Values on a white dot are consecutive. Values on a black dot are in a 1:2 ratio.

Links:
SudokuPad: https://sudokupad.app/5quy2gu5oh