Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

The yellow ring may only contain digits that are 1 or prime. The blue ring may only contain multiples of 2 or 3.

Thermometers: In each thermometer, the lowest digit is at the bulb end and digits strictly increase along its length.

Double Thermometer: In the double thermometer, lowest digits are at the bulb and increase from both sides towards the middle of the thermometer. Digits may repeat.

Homeolines: The green lines are lines of equal value, which must contain the same digit across the entire line.