Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

In a cage digits must not repeat and must sum to the total at the top left of the cage.

Digits on a marked diagonal may not repeat.

Digits on an arrow must sum to that arrow's circle..

Here is the Cracking the Cryptic link: The Fool's Windmill

Here it is on F-Puzzles: The Fool's Windmill

This is part of my exploration of "zero sum Sudoku" - clues which would remain true if we deducted every number in the grid from 10. I call it zero sum because if we changed the Sudoku digits to run from -4 to 4 the clues would all be zero. A seven cell 35 cage is a zero sum clue. I wanted to explore seven cell 35 cages a bit after my last puzzle, as they have some interesting properties. Something needs to disambiguate a zero sum grid, and here that is done with arrows. The diagonals are zero sum clues.