Even/Odd Sudoku by JinHoo Ahn
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Theme: Open Middle
Author/Opus: This is the 39th puzzle from our contributing puzzlemaster JinHoo Ahn.
Rules: Standard Even/Odd Sudoku rules (i.e., cells with a square contain an even digit; cells with a circle contain an odd digit).
Difficulty: 2.5 stars
Time Standards (highlight to view): Grandmaster = 2:45, Master = 4:00, Expert = 8:00
Solution: PDF; a solution video is also available here.
Note: Follow this link for more Even/Odd Sudoku puzzles. If you are new to this puzzle type, here are our easiest Even/Odd Sudoku to get started on. More Even/Odd Sudoku puzzles can be found in The Art of Sudoku 2 and Masterpiece Sudoku Mix 1.