Theme: Purgatory of Fours
Author/Opus: This is the 121st puzzle from our contributing puzzlemaster Murat Can Tonta.
Rules: Standard Araf rules.
Answer String: Enter the number of cells in each connected group (between bold lines) in the marked rows.
Time Standards (highlight to view): Grandmaster = 6:00, Master = 8:15, Expert = 16:30