Logic Masters Deutschland e.V.

Normal Sudoku rules, Thermo rules, Arrow rules, Kropki rules (no negative constraint):
- Each row, column and box must contain the digits 1-9.
- Digits along a thick grey line increase from the bulb (filled circle) end.
- Digits along an arrow sum to the digit in the connected circle.
- Digits connected by a white dot are consecutive. Digits connected by a black dot have a ratio of 2:1.

Additional regions: Each coloured line must contain the digits 1-9 once each, in any order.

Puzzle link: https://f-puzzles.com/?id=yeylfl22

Break in video: Watch me walk through the intended break in. Video