How To Solve Hard Sudoku Puzzles Using Coloring - SHC 167
12:54
How To Solve Hard Sudoku Puzzles Using NAKED PAIRS – SHC 168
18:39
This SECRET Shortcut Can Solve Most Sudoku
17:59
Techniques for Hard Sudoku
14:03
This AMAZING Trick Can Solve Extreme Sudoku
12:46
When Snyder Notation Fails You…Again – SHC 170
17:53
How To Solve XY-Wings EFFORTLESSLY (5 Amazing Tips) - SHC 268
15:33
'Hard' sudoku made easy - with this simple method
20:10