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Author/Opus: This is the 163rd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard Sudoku rules. The outside clues are digits that must be in the 2nd, 5th, or 8th cells in the respective row/column.
Answer String: Enter the 4th row from left to right, followed by a comma, followed by the 6th column from top to bottom.
Time Standards (highlight to view): Grandmaster = 5:45, Master = 9:45, Expert = 19:30