Normal Sudoku rules apply.
The lines are region sum lines: within each square a line visits, the sum of digits on the line is the same.
Each line has a different region sum value, the sums form a sequential set.
The black dot links two cells with one twice the other.
Solve the puzzle online at F-Puzzles.
Lösungscode: Enter the digits from Row 6 followed by the digits from Column 5.