Rossini Sudoku Puzzle (Daily Sudoku League #195)

Rossini Sudoku appeared in forthcoming World Sudoku Championship 2016. There were two Rossini Sudoku puzzles which I created while preparing for this championship. 1st Rossini Sudoku is already published with title Rossini Sudoku Puzzle (Fun With Sudoku #229). Today's Rossini Sudoku being the tough one, I reserved it for Daily Sudoku League. Today's Rossini Sudoku puzzle continues the theme of last week's Non Consecutive Sudoku puzzle. The theme is diagonal. This puzzle is tough and an experience player should take more than 7 minutes to solve this Sudoku puzzle.

This Rossini Sudoku, I am posting in The League of Extraordinary Ladies & Gentlemen, as 195th Sudoku puzzle in this series.

Rules of Rossini Sudoku