13:37

How To Solve Hard Sudoku PROPERLY (Secret Shortcut)

14:29

OPTIMAL Order For Solving Sudoku Puzzles - SHC 271

19:46

These 2 Tricks Can Solve Most Of The World’s Hardest Sudokus

1:12:29

This Sudoku Must Be An April Fools???

49:10

This messed with my brain (but in a good way).

23:03

This POWERFUL Strategy Can Solve Very Hard Sudoku

13:00

PAANO MAGLARO NG SUDOKU?????PART 1

58:48

Challenge Accepted for this great Fog of War puzzle.