Rules: Normal X Sudoku rules apply. Put the digits 1 to 9 once each into every row, column, box and main marked diagonal.
Arrows: Digits along an arrow sum to the digit in that arrow's circle.
Double Arrows: The sum of the digits along a line between two circles is the same as the sum of the two digits in the circles.
Links:
SudokuPad: https://sudokupad.app/kk65hgcc8i
Lösungscode: Row 5, left to right (9 digits).