Logic Masters Deutschland e.V.

Rules:

• Normal Sudoku rules apply.
• Global entropy : every 2x2 square must contain at least a low (123), a medium (456) and a high (789) digit.
• Genetics lines : Each "child" cell connected to two "parent" cells in the row above must have the same parity as one parent and the same strata (low-mid-highness) as the other parent.
• Digits joined by an X sum to 10. Digits joined by a black dot are in a 1:2 ratio. Not all Xs and dots are given.

Play online using Sudoku Pad or F-Puzzles

In case you get stuck, here's a video solve