Advanced Sudoku: A Double Swordfish
17:42
Sudoku 101: The Swordfish
28:59
Extreme Sudoku: Finned Fish, XYZ Wings And Empty Rectangles
54:23
Is This The Most Bizarre Sudoku Solve Ever?!
16:57
Sudoku Tricks: The X-Wing And How To Spot It
29:27
Extreme Sudoku: Viewer-Requested Solve Of A Brutal Puzzle
24:25
SOS - Help me Solve my Sudoku
38:21
Extreme Sudoku: Chains, Chains And More Chains
47:02