Logic Masters Deutschland e.V.

Rules:

Normal Sudoku rules apply.

A value in a circle indicates the total number of times that value appears in a circle in the grid. (Example: If a circle has a value 3, then there are 3 circles that has the value 3)

Some cells in the grid are super doublers. There is one super doubler in every box, row and column. The digits from 1 to 9 each appear once in a cell that is a super doubler.

The super doublers double the values of digits for the purposes of circles. A super doubler will double the value of the digit in its cell and in all cells next to it, including cells that are next to it diagonally.

A digit affected by multiple super doublers gets doubled multiple times. (Example: a 7 doubled twice has the value 28.)

The puzzle:

solve on sudokupad app: Link

solve on f-puzzles: Link