Quadro Sudoku (Fun With Sudoku #165)

I wanted to create Quadro Sudoku for a long time and tried creating this a few times. However, I failed to create a Quadro Sudoku where variation rules were used fully. Most of the earlier puzzles of type Quadro Sudoku type were solvable as Classic Sudoku. This is the reason till now I have not posted any puzzle of this type here. This is my first successful attempt at creating Quadro Sudoku where variation rules are used many times to solve this Sudoku. 
Nowadays, I try to create Sudoku puzzles with symmetrical hints. However Sudoku after creating this Sudoku, I realized that all the hints are not symmetrical. Still visual of this Sudoku looks good. So I did not change later anything to make it symmetrical. This Sudoku is not very tough and will be good practice for someone doing Quadro Sudoku first time.
I am posting this Quadro Sudoku in the Fun With Sudoku Series as the 165th puzzle in this series.
Rules of Quadro Sudoku
Classic Sudoku Rules apply. Additionally, no 2x2 region can contain all odd or all even numbers.

Here is the solution of Sudoku Puzzle Titled "Consecutive Sudoku Puzzle (Mini Sudoku Series #105)"
Consecutive Sudoku Puzzle (Mini Sudoku Series #105) Solution
Consecutive Sudoku Puzzle (Mini Sudoku Series #105) Answer

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