MUST Know Sudoku Strategies: Empty Rectangle, Skyscraper, W Wing and MORE

There are so many strategies in this puzzle. Watch from the beginning to end, or skip to the following timestamps for specific strategies: Naked Triple: 11:33 Skyscraper: 12:08 X Wing: 17:22 W Wing: 19:05 Empty Rectangle: 14:21 I hope you enjoyed this video, please subscribe for more. Thanks for watching!