Logic Masters Deutschland e.V.

I'm not sure about the difficulty of this one, I think it should be about 4.5*.

You might also like to try these:

N-lines
Rolling Wave
Potion of IcyHot

Rules:

Normal sudoku rules apply.
Region borders split each region sum line into segments with equal sums.
Along thermometers digits strictly increase from the bulb.
Digits in gray squares are even.

Play here.