Logic Masters Deutschland e.V.

Normal Sudoku rules, Thermo, Little Killer.

- Every row, column and box must contain the digits 1-9
- Digits along a grey line must increase from the bulb end (the grey circle).
- A number outside the grid indicates the sum of the digits along the marked diagonal. These digits may repeat.

Additionally:

- 1s and 2s may never appear orthogonally adjacent to each other.
- The perimeter cells of the grid (rows and columns 1 and 9) must sum to 172.

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

CtC link: https://tinyurl.com/23cpa8y8