Parity Calcudoku Sudoku (Daily Sudoku League #38)

Welcome to a uniquely challenging puzzle in our Daily Sudoku League! Today, we present a Parity Calcudoku Sudoku, a fascinating variant that combines multiple layers of logic. Classic Sudoku rules apply, but with two important additions: first, all cells marked with a circle must contain digits that share the same parity—meaning they are all either odd or even. Second, in grey rectangles, the bottom number is the sum of the two digits above it. This combination creates a rich and rewarding solving experience.

This Sudoku is my 38th contribution to the Daily Sudoku League. Can you solve this Parity Calcudoku Sudoku puzzle?
 

Rules of the Parity Calcudoku Sudoku


Classic Sudoku Rules apply. Additionally, all the cells with a circle contain digits of the same parity, i.e., either all these digits are odd, or all are even. In the grey rectangles, the bottom line is equal to the sum of the two upper lines.

Parity Calcudoku Sudoku (Daily Sudoku League #38)
Parity Calcudoku Sudoku (Daily Sudoku League #38)




Previous Daily Sudoku League Puzzle: Bent Arrow Sudoku

Next Daily Sudoku League Puzzle: Slalom Sudoku





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