Logic Masters Deutschland e.V.

Normal Sudoku rules apply. Digits along a pink renban line form a non-repeating consecutive set, in any order. Adjacent digits along a green german whispers line must have a difference of at least five. A digit in a quadruples circle must appear at least once in the four surrounding cells. Digits along an arrow must sum to the digit in the connected circle. (Note: All four arrows terminate in the central cell of the grid.)