Logic Masters Deutschland e.V.

Normal Sudoku rules apply. Digits along a Prime Sum Thermometer sum incrementally from the bulb end to a sequence of prime numbers (including just the bulb). E.g. the digits 3,2,2 add to 3,5,7, which are all prime numbers (only divisible by one and themselves).

Cells separated by a black dot contain digits in a 1:2 ratio, i.e. one digit will be double the other. Cells separated by a white dot contain consecutive digits. Not all dots are given.

Solve in Sudokupad: https://sudokupad.app/qc7fexa7nr