Even/Odd Sudoku by Thomas Snyder
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Theme: Two-Sided Problem
Author/Opus: This is the 187th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Even/Odd Sudoku rules (i.e., cells with a square contain an even digit; cells with a circle contain an odd digit).
Answer String: Enter the 4th row from left to right, followed by a comma, followed by the 2nd column from top to bottom.
Time Standards (highlight to view): Grandmaster = 3:45, Master = 8:00, Expert = 16:00
Solution: PDF
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.