Id,Puzzle Title,Date,Solver,Setter,Constraints,Video,Video Length,Video Length (Minutes) 7689,Grebbe Line,2025-10-04,"[""Mark""]","[""Altai""]","[""Dutch Whispers"",""German Whispers"",""Killer"",""Palindrome"",""Region Sum Lines""]","{""alt"":""The Clean Lines of a Sudoku Puzzle"",""caption"":""The Clean Lines of a Sudoku Puzzle"",""img_src"":""https://img.youtube.com/vi/qv8ZWqMr6JI/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=qv8ZWqMr6JI""}",00:32:49,33