Logic Masters Deutschland e.V.

CHAOS CONSTRUCTION - Divide the sandwich into orthogonally connected regions and place the digits 1-7 once each in every row, column, and region. Some region boundaries are given, and the white area should be left empty and not be part of any region.

AMBIGUOUS KROPKI LINES - Adjacent cells along a yellow line are either consecutive, or in a 2:1 ratio, or both. (Cells connected by a yellow line across a gap are considered adjacent along a line).