Normal Sudoku rules apply. Additionally:
1. Arrows: digits along an arrow sum to the digit in its circle.
2. X: digits along marked diagonals cannot repeat.
F-Puzzles link: https://f-puzzles.com/?id=y8f4f4wx
CTC link: https://tinyurl.com/whirligigsudoku
Solution code: Row 8.
on 6. April 2022, 18:12 by jguer
Great puzzle!