This is a puzzle my son Till mainly created with a little help of mine. We intended to insert some little tough ideas. Have fun and leave a comment if you like it.
Rules:
Normal sudoku rules apply.
Digits on the dark blue Thermometer are strictly increasing from bulb to tip.
Adjacent digits along a green German Whispers line must differ by at least 5.
Adjacent digits along a Dutch whispers line must differ by at least 4.
Digits in cells separated by a black dot are in a 2:1 ratio. Digits in cells separated by a white dot are consecutive. Not all dots are necessarily given.
Lösungscode: Row 5 left to right.