4:11

Tutorial #47 More Tricks and Techniques. http://www.sudokuguy.com

28:59

Tutorial #60 Cell-ebration. It can't go there. A difficult sudoku puzzle from beginning to end.

25:19

Tutorial # 65 Unique Sudoku patttern.

45:15

Tutorial #81 Elimination Heaven. A neat trick. You can do it. Locked Little Numbers.

50:47

Tutorial #79 A sudoku Puzzle to blow your mind.!!! Locked little numbers.

24:44

Sudoku classique, par Kumaresan (grille difficile)

30:10

Sudoku tutorial #86 Only 17 numbers to start!

35:35

Tutorial #56. A difficult puzzle solved from beginning to end. Lots to learn.