Normal sudoku rules apply. Digits along a pink line form a set of consecutive digits in any order. Blue/red lines are thermos, which increase, starting from the bulb. Box borders divide a grey line into segments with the same sum. The digit in a yellow circle is odd. There is a hidden thermo that begins and ends at cells α and Δ (not necessarily in that order). It only moves orthogonally, and may not cross the renban line.