Snowflake Sudoku

Snowflake Sudoku is a variant of the traditional Sudoku X, where each marked diagonal is required to contain unique numbers without repetition.

Rules: In each cell of the 9×9 grid, enter a number in the range 1–9. Each number must appear exactly once in each row, column, and block.
Additional rules: The numbers on all marked diagonals (resembling a snowflake drawing) must be different.