Id,Puzzle Title,Date,Solver,Setter,Constraints,Video,Video Length,Video Length (Minutes) 1570,SVS (296) - Flexible Sandwich Sudoku,2020-11-27,"[""Mark""]","[""Richard Stolk""]","[""Ambiguous Clues"",""Sandwich""]","{""alt"":""Back Yourself to Solve This"",""caption"":""Back Yourself to Solve This"",""img_src"":""https://img.youtube.com/vi/Vkdgj7jZ_zc/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=Vkdgj7jZ_zc""}",00:26:09,27 602,Between 1 & 9 Sudoku,2019-03-24,"[""Mark""]","[""Richard Stolk""]","[""Sandwich""]","{""alt"":""And now ... a sudoku with only 4 givens! It IS possible!"",""caption"":""And now ... a sudoku with only 4 givens! It IS possible!"",""img_src"":""https://img.youtube.com/vi/LElzpUV61X0/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=LElzpUV61X0""}",00:18:15,19