Logic Masters Deutschland e.V.

This puzzle contains 4 different magic squares, which all share the same centre (R5C5, i.e. row 5, column 5, the middle of the Sudoku):
1. A 3x3 magic square (box 5): each row, column and diagonal adds up to 15.
2. A 5x5 magic square (area bound by R3C3, R3C7, R7C7 and R7C3): each row, column and diagonal adds up to 25.
3. A 7x7 semi-magic square (area bound by R2C2, R2C8, R8C8, and R8C2): only the middle row and column (row 5, column 5) and the diagonals each add up to 35.
4. A 9x9 magic square (total puzzle): each row, column and diagonal adds up to 45.

Normal Sudoku rules apply.
Digits are not allowed to repeat on the diagonals of any of the magic squares.
Digits in cages add up to the small number given at the top left corner of the cage.
Numbers outside the grid give the sum of the digits on the indicated diagonal. Digits may repeat if allowed by the other rules.

Click here to solve the puzzle in f-puzzles