Normal sudoku rules apply. Place doubler-cells into the grid so that there is exactly one doubler-cell in each row, column and box. Each doubler-cell must contain a different digit and the value of a doubler-cell is twice the value of the contained digit. On both marked diagonals there are no repeated VALUES. VALUES along a purple line form a non-repeating consecutive set, in any order. The 3x3 box borders divide each blue line into segments which each have the same sum (ie the sum of their VALUES is the same).