Theme: Even Box
Author/Opus: This is the 33rd puzzle from our contributing puzzlemaster Ashish Kumar.
Rules: Standard Sudoku rules. Also, cells with a square contain an even digit; cells with a circle contain an odd digit.
Answer String: Enter the 3rd row from left to right, followed by a comma, followed by the 7th row from left to right.
Time Standards (highlight to view): Grandmaster = 3:00, Master = 3:30, Expert = 7:00