Extreme Sudoku: Finned Fish, XYZ Wings And Empty Rectangles
29:27
Extreme Sudoku: Viewer-Requested Solve Of A Brutal Puzzle
28:03
Extreme Sudoku: Wings, Skyscrapers & Empty Rectangles
10:15
The XYZ Wing, HOW to Find it, and WHY it works!
26:37
Advanced Sudoku: A Double Swordfish
25:02
Finned & Sashimi X Wings in Plain English! / Tutorial #11
27:59
[Extreme] A Sudoku With A Sting In The Start!
18:22
Advanced Sudoku: Skyscraper = Sashimi Finned X-Wing!
19:05