or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between a composite mode for line/edge drawing and a number entry mode.)
Author/Opus: This is the 10th puzzle from guest contributor Carl Worth.
Rules: Standard Fillomino rules.
Answer String: For each cell in the marked rows/columns, enter the area of the polyomino it belongs to. Enter just the last digit for any two-digit number. Start with the 4th row, followed by a comma, followed by the 7th column.
Time Standards (highlight to view): Grandmaster = 7:00, Master = 14:00, Expert = 28:00