Logic Masters Deutschland e.V.

A rare offering from me both in terms of using purely standard constraints and in terms of using certain techniques. It has been ready since late October 2025, but I got consumed by other interests between making it and today when I'm publishing it.

Normal sudoku rules apply. The sequences of digits on thin Palindrome lines read the same from both ends. Digits along thick Thermos increase from the bulb end.

Solve on SudokuPad