Logic Masters Deutschland e.V.

Rules:

Normal Sudoku rules apply.

Draw a one-cell-wide loop of orthogonally connected cells. The loop may not touch itself, not even diagonally.

The loop acts as a German Whispers line (i.e., adjacent digits on the loop must have a difference of at least 5).

The loop must enter every cell of every cage.

The sum of all digits in any given cage is the same for every cage (that sum must be determined by the solver). Digits may repeat within a cage if allowed by other rules.