Logic Masters Deutschland e.V.

Place the digits 1-8. All digits n must appear n times in the grid. Digits cannot repeat in a region. Digits may appear a maximum of twice in every 3x3 quadrant. There must be a gap of three or more cells between every pair of identical digits. Middle digits (4,5) cannot appear in the middle columns (3,4). Each line is either a Renban line or a German whispers line. Digits on a Renban line are consecutive, in any order. Adjacent digits on a German whispers line must have a difference of at least 5. Digits cannot repeat on a line. A circle indicates an odd digit. A square indicates an even digit. Digits next to a V must sum to 5.