Logic Masters Deutschland e.V.

Rules:

- Normal Standard Sudoku rules apply.

- Outlined regions are cages. The sum of digits in a cage is given in the top-left and digits cannot repeat.

- The clue outside the grid is a little killer clue. It represents the sum of all digits along the diagonal. Digits may repeat on the diagonal.

- The gray regions are clones. The digits on clones must be the same on their representative positions.

- The green region forms a 3x3 magic square. The sum of the rows, columns and diagonals in a magic square is the same.

- Digits along thermometers strictly increase from bulb to end.

Penpa link
F-Puzzle link