Normal sudoku rules apply.
Cells connected by a dot must sum up to the same total as any other group of cells connected with a dot of the same colour.
Two colours cannot have the same sum.
The characters in the circles are there to differentiate the colours from each other and serve no other purpose.
Cells that appear in the same position relative to their default regions must not contain the same number.
Any comments and ratings are highly appreciated.
Solve on f-puzzles