Id,Puzzle Title,Date,Solver,Setter,Constraints,Video,Video Length,Video Length (Minutes) 899,First Hidden Skyscraper Sudoku,2019-12-06,"[""Simon""]","[""Laura Soler""]","[""Hidden Skyscrapers""]","{""alt"":""[EXTREME] The Hardest Sudoku Variant We've Ever Seen"",""caption"":""[EXTREME] The Hardest Sudoku Variant We've Ever Seen"",""img_src"":""https://img.youtube.com/vi/_Q9E_AUdzN0/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=_Q9E_AUdzN0""}",00:46:04,47