or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 218th 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 2nd row from left to right, followed by a comma, followed by the 7th row from left to right.
Time Standards (highlight to view): Grandmaster = 9:00, Master = 21:00, Expert = 42:00
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.