Odd Even Sudoku
In addition to the standard Sudoku rules, all shaded cells must contain either only odd numbers or only even numbers, depending on the original clues.
Puzzle and Goal
An unsolved puzzle consists of a 9x9 grid containing nine 3x3 regions. Some of the cells have been shaded, and some of the cells (both shaded and unshaded) contain a number between 1 and 9.
The goal is to fill in all the cells so as to create a Latin Square.
The solved grid must satisfy the following conditions:
Every rank and region must contain each digit from 1 to 9.
If the clues in the shaded cells are odd, then all digits in shaded cells must be odd; likewise, if the clues in the shaded cells are even, then all digits in those cells must be even.