Theme: Smiley Face
Author/Opus: This is the 4th 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 5th row from left to right.
Time Standards (highlight to view): Grandmaster = 4:00, Master = 6:30, Expert = 13:00