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Theme: Question Marks
Author/Opus: This is the 1st puzzle from guest contributor Rajesh Kumar.
Rules: Standard Arrow Sudoku rules.
Answer String: Enter the 2nd row from left to right, followed by a comma, followed by the 8th row from left to right.
Time Standards (highlight to view): Grandmaster = 7:00, Master = 13:30, Expert = 27:00