Free Daily Sudoku: Group Sum Sudoku X 9×9 (0071)

“Group Sum Sudoku X 9×9” Puzzle Rules:

Fill the grid with the numbers 1–9 so that each number appears exactly once in every row, column, and 3×3 box.
Additionally, each number must appear exactly once on both main diagonals.
Each circled clue shows the sum of the digits in the four cells covered by that circle.

Solution of this Group Sum Sudoku X 9×9 can be viewed by clicking on button. Please do give your best try to solve this Sudoku puzzle before looking at the answer.

Link to solve it online: Penpa+