Id,Puzzle Title,Date,Solver,Setter,Constraints,Video,Video Length,Video Length (Minutes) 1415,Sudoku #1415,2020-09-14,"[""Mark""]","[""Tom Collyer""]","[""Classic""]","{""alt"":""How do Grandmasters Solve Sudoku so fast?"",""caption"":""How do Grandmasters Solve Sudoku so fast?"",""img_src"":""https://img.youtube.com/vi/ms2Sj1VhG-k/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=ms2Sj1VhG-k""}",00:16:09,17 1207,Sudoku #1207,2020-06-09,"[""Mark""]","[""Tom Collyer""]","[""O/E"",""Set Values""]","{""alt"":""4 UK Sudoku Championship puzzles "",""caption"":""4 UK Sudoku Championship puzzles "",""img_src"":""https://img.youtube.com/vi/fu7zJExacac/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=fu7zJExacac&t=24m29s""}",00:34:05,35 1206,Sudoku #1206,2020-06-09,"[""Mark""]","[""Tom Collyer""]","[""Irregular"",""Surplus""]","{""alt"":""4 UK Sudoku Championship puzzles "",""caption"":""4 UK Sudoku Championship puzzles "",""img_src"":""https://img.youtube.com/vi/fu7zJExacac/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=fu7zJExacac&t=12m52s""}",00:34:05,35 1205,Sudoku #1205,2020-06-09,"[""Mark""]","[""Tom Collyer""]","[""Deficit""]","{""alt"":""4 UK Sudoku Championship puzzles "",""caption"":""4 UK Sudoku Championship puzzles "",""img_src"":""https://img.youtube.com/vi/fu7zJExacac/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=fu7zJExacac&t=8m09s""}",00:34:05,35 1204,Sudoku #1204,2020-06-09,"[""Mark""]","[""Tom Collyer""]","[""Linked Grids"",""Set Values""]","{""alt"":""4 UK Sudoku Championship puzzles "",""caption"":""4 UK Sudoku Championship puzzles "",""img_src"":""https://img.youtube.com/vi/fu7zJExacac/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=fu7zJExacac""}",00:34:05,35 994,Sudoku #994,2020-02-27,"[""Mark""]","[""Tom Collyer""]","[""X-Sums""]","{""alt"":""The BEST X-Sums Sudoku I've Ever Seen"",""caption"":""The BEST X-Sums Sudoku I've Ever Seen"",""img_src"":""https://img.youtube.com/vi/fnCzYnsC4Ow/mqdefault.jpg"",""href"":""https://www.youtube.com/watch?v=fnCzYnsC4Ow""}",00:21:14,22