Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Cells connected by an Black dot must be in a 1:2 ratio.

Cells connected by an X must sum to 10

Cells connected by an V must sum to 5

The green dots are either X or V

All black dots, X's and V's are given

Digits cannot repeat within a cage

Cage totals equal the the highest digit in the cage x2, or in other words the rest of the digits must equal the highest digit of the cage, (see example below)

Link to puzzle

Example