Tutorial #47 More Tricks and Techniques. http://www.sudokuguy.com
13:41
Tutorial #40 A must know technique. NOT a puzzle.
29:18
Tutorial #100 A SPECIAL GUEST.
16:59
Lesson 21.Sudoku. The Xwing plus scenarios.
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Improve At Sudoku: What To Do When You Get Stuck
11:19
Tutorial 59. The rectangle pattern within a Sudoku block.
11:17
Another Must Know technique Tutorial # 41 NOT a Puzzle
17:53
The Sudoku Trick All Expert Solvers Know
36:09